Stomach and liver issue. Explain why!

Hi, From last few months i was feeling hunger too much and i used to feel like stomach cramps, grawling in stomach and all. I was having a beer party and i pucked completely after drinking 2 glass of beer . Later after puking I took a sip of beer and i fainted. Later after that i went to doc but he could not diagonise why it happened. After that it was very common that i used to feel like cramps and grawling in my stomach and used to feel like fainting so When ever i used to feel like fainting i used to settle down and rest for 5 minutes. After that almost a month i got fever for 3 days and i visited a hospital and i had liver infection due to hepatitis A however it was non reactive and UTI. After taking the medicine the results wer normal again after 2 weeks i got throat infection and when checked with doctor he said it was viral infection and was taking medicine but since i was not feeling well i checked my LFT results again and there was lvr infection again. can anyone explain why