the pain from fasting was particularly bad this morning so i had broke it and i think it may have been a blood sugar spike or something but my arms hurt EXTREMELY bad later if it gets worse i plan on seeing a doctor but has anyone else had this problem?
How long was your fast?
Ultimately like you said if things get worse go to the doctor.
If your fast was short duration this is likely something else.
I broke a 28 day fast badly before (went straight to carnivore) and the result was basically indigestion (ran right through me). My second fast of similar length I broke clean with fermented foods, eggs, raw cheese etc etc and I got swelling in my legs (likely from salt intake, but that went away).
What you’re describing isn’t similar to what I’ve experienced but with everything it’s a ymmv type of thing.