i have a werid pain in my arm pit, at least i think it is coming from there, if my top is too tight it feels restrcited and tight, it seems worse if i think about it and when i am stressed, i don't have any sweling or any lumps. relaxing seems to help, and exercise too. I have read on line that this can be a sign of breast cancer and lots of other things, so im really worried! it does seem worse after I have been lifting a heavy bag (but i usually carry this on the other side) Ive had it for years, and sometimes its there, and sometimes I forget about it......so worried! any ideas what it could be?