Every 6 To 8 Weeks I Comedown With Flu Like

Every 6 to 8 weeks I comedown with flu like symptoms I have been checked so many times it lasts for 3maybe 4 days at a time a lot of pain in the Stomach area and directly in the back from my stomach I vomit have severe dry he's weak blood pressure skyrocket my body is very hot when we take my temperature it's only like 98 I feel like I'm burning up I've had two knee replacements into hip replacement I have a defibrillator in my chest and I had the symptoms for two and half years and they went away about a year ago and they started back up again last month I am just now healing from being down three days with this my doctor has ran numerous tests I had gastric bypass in 2005 and every time they seem to put an implant in my body I get this this sickness that occurs I keep being told that has nothing to do with my illness so I don't know I just need help