I have been having pain in my stomach/upper abdomen, sometimes through to the left side of my back, below the bra strap. For several seconds I had intense pain in my breast bone & twice felt a pain, almost like a cramp, in each lower jaw, at separate times. I took a Simethicone 125mg capsule when all this began...about 2 hours ago. No help. I am seeing a GI specialist. I a am 59yo, 5 4 , 138lb white female. Blood pressure avg 120/60. Thank you!