Anxiety and frequent symptoms daily.

I am having trouble breathing n nausea daily which is hindering my daily works n activities. It started suddenly in mar2020 i thought its covid n overthinking these it made my condition worse,rushed to emergency with 170/100bp ,got KFT, Lipid,cbc,ecg,xray done all came normal,n prescribed BP med, issue persisted i consulted pulmonologist he said its anxiety n provided clonatril 0.25 n multivitamin on next visit he add etizola plus 10 but issue persisted, i switched city consulted a new doctor he gave me scitox, escipram plus n multivitamin which continued for 3-4 months which made me sleep alot and dizzy I don't know if it helped or not but the problem returned back with more frequently symptoms like daily ,i avoided the issue as I didn't wanted to stick to those medicines as they made me feel slow and nauseatic with no feeling of activeness , I don't understand how to get over this ,this thought is eating me inside , i am unable to study too. Kindly help. is it curable?