I know I keep posting but I just want to know if others have dealt with this. This annoying inability to tolerate much standing activities which all come with eventually shaky legs, high heart rate and some tension headaches. I feel better sitting focusing on something. Could this be vertigo? I do start to feel nauseous if too much is going on and trying to focus on too many things. Anybody found motion sickness stuff to work? I had labs and cardiac tests which were all negative. I am getting very nervous I will never feel normal again and I can't live like this. I also feel like all this dizziness leads to panic attacks. It could be a side effect of my medications as well ( going to app with PCP). Anybody feel similar? I am also exhausted at all times but don't sleep well.