Has anyone ever changed there dose? I was taking 25mg of Zoloft for 6 weeks and upped my dose to 50mg and on the 4th night of taking 50mg I was nauseous all night couldn’t sleep so I missed the next day dose and went back down to 25mg again and now I’m more dizzy and feel worse then ever.  So now I’m back up to 50mg again for 2 days now but I feel it stopped working. I don’t know what to do.  Has this ever happened to anyone? Should I switch ssris?