Just got out of the hospital for a couple of days because of heart symptoms. Diagnosis was bottomed out potassium and low magnesium.(Have been taking magnesium for 4 years). Heart is fine, thank you Lord! Blood pressure 80-90 over 48-62...very, very, very low. Culprit? Lozol for many years for chronic swelling and tenormin for a couple of years. So, for 2 days they pumped me with potassium and magnesium. BP still low but symptoms of heart trouble and shortness of breath improved. But, whenever I get upset at all, symptoms start screaming. I have stopped lozol and lowered dosage of tenormin. Question? Dr. suggested med for anxiety and I asked for prozac because I took it for a long time several years ago. Just weaned off cymbalta 3 mos. ago...don't like it. Would "lexapro" be a better choice? Does anyone have any suggestions. I am under unbelievable stress right now personally. Thanks!