Ive been on celexa for a couple months, just upped my dose from 20 to 30 mg 7 days ago. I've been okay then all of a sudden major nausea with some dizziness (feeling like im about to pass out) today. then my anxiety kicked in and i was freaking out until i took an ativan, now i seem okay, just a little nauseous. i have bad health anxiety and am worried it is something serious. i know its not a bug and im not dehydrated...i am so anxious does anyone know what it could be? oh and i use condoms so im pretty sure im not pregnant either.