hi, this is for my mom.. for years she's had this condition: she gets a headache, accompanied by feeling as if her blood pressure is not well, excessive burping, it can go for hours.. with small pauses in between.. It's a very bothersome situation for her. Side info: she has high blood pressure & takes a prescribed pill daily for it, she's suffered in the past from high cholesterol.. lately it's been controlled. She also has to be careful with spicy foods, otherwise she'll have problems when going bathroom.. such as blood in #2.. if she doesnt have spicy stuff she's alright from that condition. However the burping/caughing/headeache/nausea, the need to expulse clear phlemgs, keeps recurring & we don't why.. doctors haven't been able to diagnose it or prescribe her anything that works. Help please