I took Levaquin 2 weeks ago for an ear/sinus problem. I had taken the 2nd pill (750) and my insides hurt so bad that night that I could not even lay down. Since then, I have burning pain in abdomen, light colored stools, indigestion, poor appetite, and my creatinine level went up to 3.3. I am going for an EGD on Tuesday. I am really sick and would like to know if anyone else had this.