(Long boring post sorry)
Always had a tendency to a “dodgy chest” - even as a child I never had a normal head cold, it would always result in rattly chest, coughing up crap etc. My mum and grandma are the same but none of us are asthmatic (grandma’s father was though, and died from an attack).
I was actually tested for asthma once though when I was unwell and went on a nebuliser briefly. But when I did the peak flow test thing the doctor was shocked because my result was actually worse after using an inhaler

Anyway I’m still like that at 34 and my chronic illness (ME and fibro) started after a particularly bad chest infection. I’d been ill for a while but got suddenly worse after I was around smoke. We’d been at a castle fayre thing (so I must have been almost better) and they were demonstrating some process that released a lot of weird smelling smoke. After that when I coughed it was like I could taste it in my lungs if that makes sense?!
9 years later and I’ve been a bit rattly for a while. But it’s got significantly worse after going to forest school with DS and being by a campfire. Nobody else there seems affected by it so I don’t think it’s a normal reaction to smoke. And it’s not just the effect it has on my breathing - basically being around it causes a flare up of pain/fatigue. I’m gutted as it is one of the few social things I can do now but it’s not worth the resulting setback :(
Cigarette smoke doesn’t seem to have the same effect, not sure if that’s just because there’s less of it if someone walks past etc.
Anyone else have similar issues without being asthmatic? And is there anything I can do (other than avoiding campfires obviously...)? I do take high strength vitamin D which I thought was helping until recently.