A neurologist told me not to see a chiropractor. I have 3 degenerated discs in my neck.

I did it for many months, but not for FM, the insurance probably would not allow that, although FM and Myofascial Pain Syndrome probably caused the two separate frozen shoulder diagnosis that I got in under. It put me in a mini flare the two days after, you know, feeling like you been beat up. But the days after some improvement in general pain. Not ideal treatment for FM, but here in California the insurance pays for either that or acupuncture. They won't allow concurrent treatment with physical therapy, but not a fan anyway, now that I'm older.
BTW, If you decide on chiro, don't let them manipulate your neck. Too many accidental injuries and vertebral dissections. 💜

I have tried physio, chiroprator, accupunture and it helped for a few hours and after that it was all same old same old...

Don't know what pain you have, but magnesium spray works wonders for me when my back and shoulders are in spasm.

Yes, at first it is more painful, for about two days. But then it is better. But I also have numerous issue with my spine and cervical spine.