My husband had stomach surgery 3 weeks ago and 6 days ago developed an infection and was prescribed Levaquin for 5 days. On the second day of taking it, he began to not be able to eat anything, then he couldn't tolerate water and went into retching fits. He is now inthe hospital being fed intraveneously. Has anyone heard of this side effect -- dry heaving, or inability to sip or drink or eat anything? He took his last dose yesterday.