Dr says it's mind over matter and I'm feeling discouraged

I saw a new rheumatologist and told him about all my symptoms. He said that fibromyalgia is curable, that it's all mind over matter and, of course, that I need to lose weight and I'll feel better. He was overweight himself mind you.

He asked me the last time I walked a mile and it's been over a year. I can barely get 1/4 mile without something hurting; I don't go shopping anymore because it hurts too much and I get an average of 650 steps a day (I wfh). I've considered that I might have me/cfs but something tells me he'll scoff at it.

I have yet to get my tests done but I don't think I want to go see a rheumatologist who has this way of thinking. Just feeling discouraged.