This is the first time that I think someone night be on to something. I've seen doctor's. I've seen my GP 3 times and a dermatologist as well. They all came up empty. I'm going back to my GP today because the muscle pain is still worse. I was wondering if it was possible to have nerve damage that caused radiating pain after getting a tattoo. My wife has had multiple surgeries on her abdomin. Because of the multiple lacerations, there has been nerve damage that, at one point, has her in the hospital with level 10 pain. After physical therapy, the pain diminished.
The araa that I was tattooed has now been gone over 3 seperate times. So I'm wondering if, because of how much this one part of my skin has been gone over and broken down by needles, if it is possible that there is some nerve damage caused by scar tissue compressing the nerves in my arm in the same way that my wife's scar tissue compressed her nerves.
See a doctor.
It is rare but there have been cases of inflammatory myopathy as a complication post tattoo - it's been found in cases where people are immuno-suppressed - which could be for a number of reasons.
I say "have been cases" - a quick google only brings up one - so it seems very rare - or under-reported.
Not saying that's your issue of course - as above - you should see a medical professional (internet forums are not the best place to get any kind of diagnosis).