John siemens alpha 1 7 5 6 8 4 investigations h pylori stool antigen negative ms siemens writing with the result of the stool test we're performing to investigate for the bug in the stomach which can cause stomach inflammation as seen at the time of your endoscopy full stop <\n\n> Reassuring, this test is entirely normal showing that you don't have an infection with this bug full stop I hope your symptoms have improved with the changes we discussed at clinic and that you were able to double up the dose of your antacid medicines to heal up your stomach as I discussed in my last letter thanks to all yours sincerely