Need deep breath in every 5 minutes.

I am obese, i have a big stomach,my weight 118kg, height 182cm,i am hypertensive taking T.betacap 20mg in the morning and Telmisartan 10mg in the night, before medication my bp is 110/70, and after med bp is 100/70,100/60 pulse is resting 54, I have fear of illness, googling all the time to check my symptoms,i have upper back ache,first it was on my left inside the shoulder blade now it is in right side too,so I met a neurologist,he prescribed duloxetine 10mg twice day,and neurobion forte once,now from last 10 days when back pain comes i am feeling like I am not able to breath or i need a deep breath,i was a smoker before,i stopped smoking from last 2 months, feel like chest congestion is there , while breathing some sounds like phlegm ,i have a dry nose, lying under the fan or driving the bike i have this issue, i used to do nasal irrigation,my left nose is deviated or can't breath enough through that nostril, what is my issue is it mental,whom I want to consult,  ecg,echo is normal