I'm fairly certain that (at least for me in this household) the underlying reason why I in particular suffer and it goes on for far too long, and happens cyclically around this time of year is because when we moved in here... the old lady that had last owned this house before us? Well... after we moved in, wife gave birth... then winter came... first time the still original 1959 Heater built by Chrysler Corporation kicked on in this house... instantly I was like WTF is blowing out of the heating ducts? What's that smell?
I went and opened up the heater to go and look at the filter element... and... it is impossible to convey to you with Mortal words how disgusting that filter element looked. It was obvious that old lady for who knows how long, definitely multiple years, never changed that filter element! It was beyond disgusting!
So... I replaced the element. But... still... lots of dust could be seen settling on surfaces from when the heater ran.
So... logically I called to have some place come in to clean the heating ducts, figuring for sure the inside of them must be equally filthy. Problem though... is that when they came... first thing they did was open the attic and look over to inspect the ducts... and the problem is... most of them ducting is original from 1959, and back then they commonly produced long sections of ducting insulated with Asbestos wrapped/molded around the ducting. So... the companies to clean the ducting won't do the job because they can't risk possible exposure to their workers. So... in the meantime, I just do my best at being diligent with filter replacement on the intake side... and then I also added cut-to-fit filter element pieces on the exhaust side where each duct terminates. But.. even with these measures, still some of that dust which is inside the ducting pumps out when the heater runs when the terminating side filter elements start to need cleaning again. NOTE: I've personally inspect every ducting which has the wraps on them. They are not frayed at all, and the general consensus is to leave them alone until you're ready to pay for an abatement team to come in and remove them. But that is expensive.
Occasional bouts where the heater needs to come on aren't that big of a deal. I may notice my eyes possibly getting a tad itchy if it has to be on for several days, but I don't get this deep lung crap.
But I think it's the one-two punch of me catching a bug first... which ends up causing all that acute onset of inflammation... then this winter and cold long-running rainy crappy weather making it run significantly longer, and I figure it is then exacerbating the state the (most likely) virus put them in. I say most likely virus because typically in these scenarios since it is more likely to be a virus. However, in desperation I'll bug them to give me something like a Z-Pac (an antibiotic, and those only kill bacteria), and often, I'll get much better. My theory there being perhaps when the virus has my immune system down, maybe an opportunistic bacterium then dog-piles on and capitalizes on it? Hard to say, since I did have that Rheumatic fever as a kid. I have no way of quantitatively measuring if my immune system is less-than.
The kicker is, from what I've been told, to have the heat ducting replaced, since it's got Asbestos outer-wrapping (even though it is NOT frayed, I've personally inspected every piece of it to make sure of that before I brought my baby home from the hospital) I'd have to hire an Abatement team to yank it. and I recall that being several thousands of dollars. Also... ya figure if you're going to bite that bullet, it'd probably be considered wise/advisable to have the heating system replaced as well. So I figure that'd gotta push it somewhere near or possibly above $10K or thereabouts. BUT... we ended up having several other issues crop up that more urgently needed attention in the house. Because again, the weather around here is usually great most of the time and the heater hardly comes on that much, especially now since I had to address some stucco issues that arose from the place needing to be repainted, so while they were at it, I had them use a primo elastomeric coating underneath the paint to seal up the stucco and it provide better insulation properties against the heat from sunshine falling upon the stucco from radiating inside. I also had them put in new energy efficient windows to replace the air-leaky as hell original 1959 windows and a very old and problem-child back sliding glass window that was on it's last legs and was getting embarassing. Forget how many more months I have on that loan. Still got like $6K left on that loan. And before that we had to resurface the pool. And that's a time critical thing once the "vessel" goes bad and gets porosity, because then the chlorine in the water leaches calcium out of the (what was a) plaster and you're never able to balance the water, so you're constantly fighting Algae since the leached calcium buffers out the chlorine in the water. Also the chlorine infiltrate that plaster and starts causing the rebar to rust thru. Being long-term minded I went with a form of Pebble Tech for the redo, since it can last much longer. But the price tag stings. AND... the roof on this place was not in good enough condition for the sale to go thru initially, so the seller opted to replace the roof for the deal to go thru, but, only did so with a 10-yr gauranteed roof. We moved in before my boy was born, he's 12 now. And though it looks in decent enough condition. I know it would be wise to bite the bullet on that too and get the roof redone sometimes in the next couple of years as a preemptive measure, and when they do it I'll more than likely also have them replace the plywood because it looks to my eye like it's been nailed thru more than few times to my eye. Like if they redid it and didn't replace that plywood underneath it, I'd always feel nervy about it leaking or failing from getting too shot-up with holes from the nail-gun, ya know?
Not to mention the fact that this place could use some re-wiring with an updated 250 AMP breaker box rather than the 100AMP P-Type breaker box it currently has.
So we'll see. Looks like after these two loans are over, I'll probably have to prioritize getting the ducting yanked and heater swapped out moved to the top of the "biggie" list. Caused I need my "jail cell" not to kill me like this. If indeed that's the dealio here, that my body is just reacting very strongly to this dust from the ducting. I do know that the kind of dust bunnies found inside of computers and the kind of dust that gets on me when I've had to work in the attic (like when I was laying out roll insulation up there) makes my skin crawl with itchiness when it gets on my externally.
In the meantime I'll try to yank the exhaust side ducting filter elements and wash 'em again. Chances are high they've already clogged back up a bit, since I can't remember when I last yanked them down to clean. I know Mama did it sometime within the last year. But that's all I can remember right now.