Hi,
I hope you are feeling a bit better now.
Sometimes when the sharp pains happen (feels like barb wire being pulled through a area), sitting up can make it feel worse and last longer. ITA with the warm heating pad. Also laying down helps - on your side, alternating every 10-15 min. It sometimes helps ease the sharp pains. Does it hurt to stand? Is the pain all over or can you pin point it? If you lay flat can you feel the area? If it is a rhythm type pain, like waves it could be a blockage. If the pain does not let up you should call and check it out. If the pain is happening regular, you need to call.
Try not to eat fiber foods-fruits or vegies with skins-wheat type crackers, cereals - corn, popcorn....things that don't digest easily. Great time for rice krispies, applesauce, mashed potatoes, ensure, boost and no name drinks... If you cant tolerate milk in cereal try the vanilla coconut milk its by the soy and taste better.
Warm beverages might help.
Take care, feel better soon.