Pain Under Armpit, Soreness In Arm, Bruise On Bicep

I woke up one morning with pain under my left armpit- i can pinpoint the spot with my finger. The next day I woke up with soreness above the crook of my left arm with a bruise trailing from the pain in my armpit to the pain on my arm. Over the next few days, more soreness developed on the top of my forearm trailing down to the back of my hand. That bruise went away, but now I have a new bruise about 3 inches long going from inside my forearm to my bicep. The pain that I have feels like a tight lump (but its spreading and moving) and when i push on it or flex the muscles its on, the pain becomes hot, tingly and my fingers fell like they want to fall asleep. I haven't bumped anything, Im hydrated well (from Phoenix), not on any medication, etc..