Hydromet cough syrup symptoms and conditions

I have had bronchitis for 3 weeks. I first was prescribed a 5-day Z-pack, which didn't do the trick. Went back to the clinic doctor, as I don't have insurance, and I switched to Levaquim, 500mg/day, once a day, for 7 days. Its now 5 days in and I'm still sick. I don't cough a lot because of the Hydromet cough syrup, but I can tell I'm still sick.

Side effects have been insomnia mainly, and a sporadic inability to concentrate. I have not been nauseas at all, nor have I had any of the joint or other pain reported by other people. I can't even be sure the side effects I have had are from the Levaquin, as opposed to the cough syrup.