Hello, I was recently diagnosed for having Helicobacter Pylori from an Urgent Care facility and I just under went a 7 day treatment for the bacteria. The antibiotics were Clarithromycin (250mg - 1 every 12 hours), Metronidazole (500mg - 1 every 12 hours). After the treatment I did a follow up with my primary care physician and told me the treatment should have been longer than 7 days and up to a 14 day treatment instead to ensure the bacteria is all gone. As of yesterday, perscribed me another (optional - meaning it was up to me) 7day treatment of antibiotics of Clarithromycin (now 500mg - 1 every 12 hours), Amoxicillin (500mg - 1 every 12 hours), and Prilosec OTC (20mg). But here s the real issue. After I eat something, especially after eating a Subway sandwich (lettuce, turkey, olives, mayo, italian bread), I feel movement & warm spots in abdominal area, i exhale gas and or stomach acid, I feel nausea, dizzy, faint, sweaty along with cold chills. Could this indicate a blockage in my digestive system? Is the foods too harsh for me?