<s>[INST] Over the past 4 days I have experienced back and abdominal pain, my body aches, at times difficult to get out of bed, fever comes and goes, I m nauseous most of the time, especially after trying to eat, I have a loss of appetite, I feel better in the morning after sleep and quickly decline when I try to eat, my head feels a little fuzzy and I am tired. It has been a few days and I have no idea what is wrong with me. [/INST] Hello the last 4 days, you are having back 7 abdominal pain. Also, nausea and loss of appetite. While you had also tiredness which worsen after wake up. Such type of symptoms may be due to these reasons, these include:1 Jaundice, diagnosis can be confirmed by blood examination for hepatitis, serum bilirubin and GOT, SGPT level.2 Typhoid fever is another such reason. Diagnosis can be confirmed by Tidal and serology test.3 Viral fever is another reason of such symptoms. As you stated that you are having, this is due to hyper acidity caused either by disease or by Chat Doctor. So please consult a physician and get his opinion. Good luck. </s>