Hi, I was recently on Mirtazapine (remeron) for anxiety and slight depression, which worked so well for me but I gained 30lbs in a few short months, so I stopped taking it. I was now given Pristiq to begin taking tonight. I was wondering if anyone can tell me their experience with Pristiq and the side effects. I am a 33 yr old female 5'9 174lbs (if that helps lol). The only other health issue that I am aware of is IBS/constipation. Thanks in advance