... unsure of myself. I have PTSD and depression issues. I have been on various medications and therapy for over 20 years. My doctor just switched me from Zoloft to this new drug Viibryd. I just took the first 20 mg tablet yesterday and I feel horrible. The nausea and queaziness is worse than my morning sickness when I was pregnant. I cant hardly get off the couch and all I want to eat is junk food. I have a 21 month old and husband who need me. I am a stay at home mom so a lot rests on me. I felt ok with the Zoloft (sertraline) but I was still having "bad days" which is why she switched me. She said that I should start experiencing more good days. Not sure if the side effects and discomfort are worth it