You need to rule out candida, a fungal/yeast overgrowth condition, usually not recognized by many conventional doctors.
As a screening test, you may do the Saliva test for Candida.
1st thing in the morning spit in a glass of water.
If your sputum takes more than 3 minutes to disperse and dissolve in the water, or if it sinks, it indicates presence of candida. Repeat a few different days to confirm.
To treat candida, you must avoid carbohydrtes/sugars and stress, take quality probiotics and use an ant-fungal.
The best one with the widest action against most species of candida is coconut oil. Use in your cooking or orally as a supplement, starting with 1T daily and tapering up to 6T daily
for therapeutic benefits. Give it a few weeks to see results.
Also look into Oil Pulling using coconut oil!
It is anti-fungal, anti-microbial, anti-inflammatory, anti-viral, anti-parasitic and w/o any known side-effects.
Cheers,
Niko