Had similar before. Was suggested it may be acid reflux but had caught a bug from a friend who had been abroad(I had it before after travel to australia). I had antibiotics and used fresh lemon and manuka honey in hot water and it got better.
Mum to son with hms,pain amplification,migraine,plantar fascitis,ibs.lactose intolerant,hayfever and numerous allergies. I have hms,arthritis,migraine,p.o.t.s,allergies,and others too numerous to mention. Acused of being mentally ill hence.....madmum.