I felt sick on 1/11/17. Went into Urgent Care and they said I had the flu. Randomly felt better the next four days..and then the symptoms returned on 1/18/17. But worse then before. Stomach pains, nauseous, no appetite, headache, no energy, body aches, jaw pain...and ever since then (now it's 1/27/17) I have had no appetite but try to force myself to eat at least once a day.. I did go to my primary doctor on 1/23/17 and she gave me amoxicillin for a sinus infection. I am hoping that I regain my appetite soon and hoping the headaches and body aches go away. Any suggestions on what this is? A stomach bug that just hasn't gone away yet?