I am on Day 3 of a 7-Day treatment with 500mg of Levaquin This treatment is for asthma related breathing and coughing issues .So far , hot flashes, headaches , nausea, back muscle pain, leg muscle quivers, and a feeling like Im drunk or in some type of stupor; or fog........hard to concentrate and focus on anything for more that 2-5 seconds. Wheezing is back , even after Ventolin treatment .