Hi I was out yesterday and took at hard fall on my butt and later that day I was noticing slight chest pain. then I noticed that there was a hard lump on my right clavicle close to my sternum. It feels the same as my left side just larger. Tonight when i lifted my arm up in the shower there was sharp pain and now as I type this I feel a little pressure where the lump is and my right arm feels like jello. It's very weak. Could I have done something from falling? I'm trying to decide to go to the doctor or not.