Re: LPR symptoms from mold?
Well, if there is mold in your house, and if you are allergic to it, the allergy-related postnasal drip could be irritating your stomach.
Step one is to see if you have mold. Can you look for it? Or might it be inside a wall? If there's a lot of mold, you can actually smell it.
If you do, you could (carefully) remove it with bleach. You may want to wear a mask while removing it. And of course, the mold will return if the area is not kept dry.
You could also try allergy treatments, such as antihistamines or possibly a sinus rinse.