Hi Christina. Like childofchaos, and Pookyl, I have also had to wear the holter monitor once in the past. It is indeed annoying. I have had tachycardia. Or specifically, had. I take medication that eases that and it really works, I think I'll take that medication permanently, or a similar one. It doesn't give me side effects. It does only good. I'm not 100% of why I have it. I know that I have mitral valve prolapse, but that doesn't seem to be a big deal for me. I sometimes wonder if stress and my bipolar disorder have contributed, too (anxiety, hypomania/mania, etc.) I hope the solution to your tachycardia is as simple as mine. I really hope your other physical issues are soon resolved. You need a break from them, I know.

Hugs