I am so confused because I have too many issues that can cause the same symptoms. Recently, my doctor switched me from Valsartan HCTZ to Hydrochlorothiazide plus regular Valsartan for my blood pressure. When I first started it, right away I was having rapid heart beat and shortness of breath so he told me take potassium supplements. That did help but now I am wondering if I am taking too much potassium. I starting concentrating on foods with potassium such as bananas and also increased my supplement to two a day instead of one. Now, lately, on top of the fatigue I was already having (from other issues?) I have been feeling swimmy-headed and having a lot of headaches as well as increased feeling of exhaustion. I am wondering if I am taking in too much potassium now. I have so many issues and take so many meds that it is really hard to figure it out. Even my doctors say I am complicated. I get so depressed and stressed out trying to figure it out. Does anybody have any real helpful suggestions?