Pain and vacinne

I had my 2nd Covid vaccine 5 weeks ago and have chronic pain in both arms , shoulders and hands since around that time. Not sure if it’s just a coincidence or if it’s a long time side effect of the vaccine. I’ve just been prescribed Gabapentin but it’s yet to kick in and not getting any sleep in the meantime. I can’t find any evidence anywhere of long term side effects of the vaccine just wondered if any one else had suffered. I know there are short term side effects. I have rrms. Thanks for any advice