What's the definition of double crush? I've been told I have it but I also had tendinitis a few decades back and still suffer from that too I believe. Can one have both double crush AND additional compressions at the elbow and/or wrist?

I'm thinking of taking a trip to the Mayo Clinic to get diax for my multitude of issues to see if there is anything other than the TOS surgery I can do. I have Hypermobility, perhaps Fibromyalgia (yes, dxed), degenerative disk disease, pec minor syndrome, and perhaps the tendonosis or whatever is affecting my arms and elbows in addition to TOS. Has anyone here been to the Mayo Clinic for diagnosis? Don't worry; I wouldn't consider doing TOS surgery there.

thx!