I would say you have systemic candida. Consider adding a ton of greens to your plan that's in place and eliminating heavy animal proteins. It will give your immune system a boost to get that out of your organs and skin, and create an inhospitable PH for candida.
Symptom Underweight
Yeast and fungus produced in an acidic environment can feed on our nutrients and thus reduce the absorption of everything we eat by as much as 50%. Without protein the body can’t produce enzymes, hormones or other chemical components necessary for cell energy and organ activity. This causes people to become very thin, which is not healthier than being overweight. As alkalizing and oxygenating takes place, the body naturally begins to seek its own ideal weight.