I am 39 years old with three children and lately my cramps before my period seem to be getting progressively worse in pain with the last two leaving me doubled over in pain and almost crying. motrin and tylenol do nothing to help and always did in the past. The thing is I don't really have any other symptoms like heavy or irregular bleeding and I am totally fine the rest of the month. Any one have any idea what could be causing this? Does it sound like it could be endometriosis? When the cramps are really bad I also feel pain in between my rib cage a little under the sternum. maybe irritated from all the motrin? Could a cyst be causing this? Thanks for any help!