I've noticed I have quite a constant, dull stomach ache. It feels like a burning kind of sensation, in a band in the middle of my abdomen above my belly button. It gets worse when I have an empty stomach, and eating eases it.
The only other time I have had this stomach ache was when I was a teenager and would take ibuprofen on an empty stomach for period pain (I no longer do this). It's the same burning kind of ache.
Any ideas? I've had a blood test and have borderline low B12 but everything else is normal