I Am A 55 Yo Male. I Suffer From Atherosclerosis

I am a 55 yo male. I suffer from atherosclerosis anxiety depression blood pressure. I had a catherization done on May 27th. I am having really bad dizziness cold sweats and tremors. I take plavix metaprolol isosorbide aspirin mirtazepin lisinopril omeprazole ambiem and naproxen. The doctor told me after my catherization that i was clean and to continue my meds. But I still have shortness of breath upon exertion. I dont know what it can be