I had severe Repetitive strain injuries, and a work comp claim, PTs, MDs , HR & dealing with "limited hand use/no wrist rotation" work restrictions in a manufacturing work place..
Yes, it can become like that process is ruling your life at times... sometimes if possible, you need to take a break from it all.. space out the appts if you can .. listen to soothing music and breath deeply to calm your mind..

I do suggest looking at some alternative care providers..
DO as mentioned..
What is a DO? | American Osteopathic Association
maybe even naturopath, acupuncture, dietitian..

If you suspect diabetes or pre diabetes you don't have to wait for a test to show it, there are many books (in libraries) & website articles with things to try for meals & lifestyle..