Hi i can answer this i hope,
This summer il be clean from cocaine/mdma/ectasy for 4 years
The cocaine WD's were normally pretty bad for the first 3-4 days vivid nightmares etc & then it would settle
The mdma always made me feel crappy a few days after taking it anyway and after a few weeks i would start to feel myself again
After 7 months i cant say i was fatigued
Have you had any bloodtests recently or what is your sleep pattern like ?
This might be something else ?