nausea/vomiting
"I suffer from both severe emetophobia (fear of vomiting) AND a panic disorder which causes nausea and gastric upset. I spent many years trapped in a horrible cycle of panicking any time I felt the slightest twinge of nausea, which in turn, induced intense stomach upset, sometimes to the point of heaving. I've tried other anti-nausea medication in the past (Phenergran, Compazine), with so-so results, and the annoying side effect of extreme drowsiness. Zofran has been a real lifesaver for me. Within minutes of taking a pill, my nausea subsides. The only side effect I've experienced has been constipation, but I'll take that over vomiting any day! 

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