Has anyone began to experience health problems since DNing?

Ive been DNing for 7 months, and for the last 10 days, I've been experiencing extreme fatigue along with nerve pain. It's not getting better and I'm very worried.

I have Genki health insurance. I went to a private hospital to see a dr in Buenos Aires and they charged me 85 dollars to see me for 10 minutes and tell me it was muscular strain (it obviously isnt). The insurance, if I'm lucky, will reimburse 35 of that (50 euro deductible plan), but I don't want to visit the doctor again and be brushed aside.

I'm also leaving for Rio next Sunday. I'll be there for a month, so if symptoms continue I'll definitely be seeing a doctor there.

From rio, I am going to Peru where I will be pretty remote for a lot of it and I'm not too trusting of medical care there.

My idea is to end my DN experience in August and go back to Spain where I hold permanent residence (I'm an American citizen), there I can get treated. But I'm afraid I'm beginning some very complex health issues that need me to get regular care by a single provider. I'm afraid this is fibromyalgia.