I sometimes had SOB (shortness of breath) after interval training and when I use to feel so I leave exercise and take walk all go normal but 8 months back I use to have SOB and after walk I did more exercise and 15-20 minutes I just got unstopped SOB. I went hospital directly and ECO, TMT,Xray, ECG,Lipid, PFT,Sugar test all normal doc told its BP fluctuation. I been in extreme weakness for months and also some psychological issue like suffocation in high cloths and covered rooms. After 70% recovery in 4-5 months I started jogging and all good except weakness after jog but one day I did 2 rounds more and 30 minutes after got mild SOB. Doc gave me nebicard and it had worsen the situation with dizziness and weakness then he gave telmisartan for few days it was ok and then shallow breathing morning time but in eve all good. Doc asks me to have more water in take. I have consulted 3 docs (1 senior physician and 2 cardiologist) all say same: technically no problem but bp fluctuation and anxiety. I generally now� face SOB if I take more than 40 stairs. Pl advise.