This was from 6 months ago; I went to bed feeling rather fine. I then started to notice that I was getting nauseous. It went so severe after 20 minutes. All in all, I woke up very nauseous in the morning. After a few hours in the morning, I had chills, fever and fatigue. They seemed like a typical "stomach flu" symptoms (norovirus? rotavirus?). They lasted for 10 days.
(A month later I had minor relapses of this, with milder nausea but with a lot of stomach cramps.)
Anyway, I got a breath test 3-4 weeks later. The results came up and said "H. Pylori", but it was unequivocal (neither negative nor positive). I went in for a second opinion, after reading about H. Pylori and how my symptoms differed from it, and then they told me that it could've been a "false positive". So if it was, say, the norovirus, could they have really mistaken it for bacteria?
 
 Thank you.