my brother did some heavy lifting over the weekend, and feels that he hurt his shoulder . after we got off the phone, he called me back and said that he can feel a lump under his armpit, and its making him nervous. could it be a torn muscle or ligament? he said he took some tylenol yesterday for it, and i suggested ibuprofen , but i think the lump has him nervous.. and myself, as well. thanks in advance for your time!! omg, you have to pay for an answer????!!!! are you kidding me?