Excess Mucus and shortness of breath.

Hello doctors. Since last 1 year I am suffering from Excess mucus secretion(specially in the morning)which is yellowish or grayish in colour. In April I got my ige test and x ray. Reports attached. Doctor diagnosed seasonal allergy and advised Montek LC bed time for a month but I took it for a week only. Very occasionally(once a week or lesser) I suffer from shortness of breath and this generally is during bedtime. I took covaxin around 5 days ago and since then I am suffering from little low BP (105/70), sometimes not regularly shortness of breath and rapid heartbeat?  Is it due to some weakness after vaccine or allergies? I do have some gastric trouble like excess gas passing. I do regular workout almost every day. No other health condition. Normal SPO2 i.e 96/97/98. Please advise for treatment?