 [ Symptoms ] if i took sudafed for what i thought was a sinus headache can i take tylenol too [ Disease ] i also experience pain like yours can not find the reason for it as well after a lot of different scan is blood tests etc very frustating i have been to a gastroligist and diagnosed me with ibs have been on a fodmaps eating plan and have found some help with the pain gluten seems to be one of the culprits together with lactose look up fodmaps you will find a lot of information it seems strange but too many fruit and vegetables can actually cause the pain you could give it a try it is like your body has an intolerance to specific foods it is finding out what food your body has a problem with the severity of my pain was nine out of ten doubled up severe pain it is hard to believe food can cause so much extreme pain i still have pain attacks but not nearly as often as i use to but gluten in particular can be found in cough lollies yogurt ice cream and other foods that you would never guess has gluten in them this is only a suggestion it has helped me