I have acid reflux and a hiatal hernia . My stomach has been really sour lately after eating, lots of gas and belching . My GI doctor suggested changing my meds and if I don t improve, do an upper scope again (it s been 4 years.) Last night I got hot flashes and cold sweats and was headachy and nausous. Went to primary care doctor this morning who ruled out the flu or another type infection. Said I may be working on an ulcer? Have you ever heard of an ulcer causing hot flashes (not heartburn , more like a hot flash across my chest and upper back/shoulders)? Was given somethng for the nausea but that s all she could recommend.
Hi welcome to Chat Doctor forum.  Thanks for calling Chat Doctor. F.  As you describe there are hot flushes, (hot flash across chest and upper back.)cold sweats, headache a nausea. As you have hiatus hernia, and G.E.R.D. also when it is more it can elicit like this also, due to hyperacidity. Of course it is also possible when there is fever associated with gastritis it can be confirmed if you get fever in next few hours. Other possibility is jaundice confirmed by yellow urine and yellow eyes.  But as it is mostly suggesting gastric symptoms I advise you to consult a gastroenterologist for diagnosis and treatment. You may have to go for gastrostomy besides other routine tests for confirmation.  Wishing for a quick recovery.  Best regards.