Think toxo, crypto, alina. You would be low in zinc.
I still think ecoli 157 ?
Stool analysis or bacterial blood test may be useful.
Hair analysis says not a parasite.
Try corriander oil, drink a teaspoon of listerene total per day. 10 to 15 drops a few times per day, like they did 100 years ago. Original mint, or natural mint still has thyme oil.