Slight difficult in breathing RTPCR -ve.

I think I cannot breath properly. There is slight pain in the right side of my chest (in the back side below shoulder blade). Cannot sleep at night properly. I have slight cough and also taken RTPCR COVID19 test but the result came NEGATIVE . Still those problem exists, slight dizziness is also there from past 1 day. I have dust allergy and use to take Azithromycin and hence taking it as a precaution. Other problem: I have pulled nerve in the back and therefore having difficulty in moving for past 2 weeks constant pain in the back till the back part of my calf. Any suggestions will be appreciated... Medication i am taking 1. Azithromycin 500 2. Karvol plus (inhaling ) 3. betadine 2% (gargel ) 4. Vitamin c supplement As it is tough time I am avoiding unnecessary hospital visit. But again expert opinion is always preferred.. Thanks again in anticipation