I have a broncial infection to which I was give Levaqqil to solve. After a couple of days I had ringing ears, couldn't sleep, aching stomach, severe head aches and anxiety. I went back to the doctor, but he told me to finish the drugs. after 6 days I stopped as I couldn't get any sleep, and the ear ringing is driving me crazy. I stopped a yesterday and I still feel bad and have ringing ears. This is a scary experience.