Thanks for that. I'm just nervous because I think the flagyl set off something. I now have autonomic dysfunction too! (Started 3 weeks ago) I'm wearing a holter heart rate monitor now from my dr. They are saying it might have been a double attack now as I had a virus first, then a drug like flagyl. My heart is now painful, slow (or fast) and doing flipflops, and I'm having a hard time breathing. Also I'm constipated for a month. This is on top of every area of my skin burning or tingling. This is a nightmare. I hope my body can clean this mess up!