I have been getting really hot and then will have pain down middle of chest. Especially at night. I have this pressure of something under the right rib. Had gallbladder check way back and they said it was normal. It still hurts there now. When I get hot back of my head feels really hot, and I start to sweat. I am 68 years old. It has been going on about a year. Had scopes down and in colon. Have diverticulosis. Taken reflux meds and they didn't help. Could it still be my gallbladder?