I just googled it I believe it's called "Kronik yorgunluk sendromu"
I'm guessing you're a western expat living in Istanbul? It's funny I came down with CFS/ME like illness while visiting Istanbul 20 years ago. It appeared to be from an infection mainly involving the liver (my liver enzymes were 30 times the normal) but I tested negative for all hep viruses. Since then I've had numerous neuro and mood symptoms, and a mild case of dysautonomia.