Jo, I am really sorry for all that you are going through. I am glad that you are going to see your doctor. I have anxiety too, and some meds make me uneasy, too. I take wellbutrin and it doesn't bother me, but helps take that anxious edge off of the day, without making me feel weird.
try taking it a moment at a time, and don't worry about your ex and what he does.. you need to take care of You now. things have a way of working out, and we don't have to fix everything in a day, so try to rest when you can, if you are not sleeping well. that can make anxiety worse.
big hugs..
chicory