I have been suffering from low grade fever, excessive saliva at night, dark and less urine?

21y male.. 5 years ago I had repeated fevers I used many medicine indiscriminately since then I have been suffering from low grade fever, excessive saliva at night, dark and less urine, after 2 years symptoms progressed with Lump in throat during and after eating fatty/oily food, milk, juices etc, (it feels like nutrients fackflow), feel full with abdominal discomfort (not pain) after eating and when sleeping on front, fatigue, weakness, peeling scalp hair fall, I can also see a bit abdominal hair fall on my banyan.. I have tested for hepatitis b/c and were negative, also had ultrasound and was intact. Appetite is good.. Thanks