Doctor,

Could I please ask you a question? This afternoon I went to lie down after my lunch and when I woke up I had this great pain just under my breast line, Between my breasts just underneath, i can feel a hard spot, which is really worrying me. The pain is like someone has put a knife through me and reaches right to me back. I have no idea what it is, to I need to go to the hospital or just wait it off?