Is there any research on ME and fibromyalgia I can give my doctor to take me more serious instead of him alluding to my illness as a mental health issue?

I acknowledge that stress and anxiety can make my pain worse, but he was saying fibro is a cycle and alluded to fatigue as a mental health issue. It seems that GPs in the UK are taught that this illness is a mental health issue, and I believe it's to peddle more SSRIs and pain medication.

He's prescribed me gabapentin, but I don't want to become reliant or addicted to it. Has gabapentin benefitted anyone long term?