IBC symptoms ??? HELP!

Yesenia

I got this bug bite looking thing under my arm, I looked up if this could be a sign and sure enough it says that a bump similar to a bug bite can show up. But this is right a few inches below my armpit, wouldn’t it usually be on the breast? I have been having a lot of worry particularly on this side and now this shows up and I have no other bites and I just think it’s real convenient. Please help I’m having major health anxiety 😓😓😓.