Hi there I have been on medication for high blood pressure since I was 18 years old, betaloc, and was on that for 17 years I started feeling righr sided pain and around the same time started feelimg slight heart palpatations, I again saw my cardiologist he put me on isoptin, but my symptoms became so.much worse, I also started to feel muscle weakness severe headaches dizziness flu type symptoms, then it all took a turn for the worst again, I have pain down my left arm all the time and in my left shoulder I am always nauseous, and very fatigued I then started to develop very uncomfortable palpatations 24 7 they last up to.months at a time and I feel very unwell with them, I have been to every kind of doctor and no one knows whats causing this, im really suffering and do not know where else to turn, I get cold sweats as well and have been rushed to hospital 5 times with tachycardia pleased help if you can im desperate thanks rebel!!!