Hello this is my first post so please be gentle with me
I have only found this forum as I was searching for underarm pain on the internet.
I have pain under my right arm pit and down the side of my right breast too, I suffer with anxiety and have done for the last few years (I am 30 btw) On Monday I saw my Dr and she said it was just muscular but after reading through several threads on this forum I know believe it to be related to the anxiety and it may just possibly be "Mouse Arm".
Whenever I have any sort of pain and I mean ANY pain I truly believe that I have some life threatening illness and have 6 mths max to live! Crazy I know but thats me.
I have had the pain on and off now for a couple of months but I really do feel so much better for discovering these forums and finding people like myself I try to speak to my family about it but I am sure they just think "oh she's off again" LOL