I agree with the meal supplement drinks if nutrition/blood sugar levels are an issue for you!
I too, have been suffering from terrible anxiety during pregnancy. I went off my meds in November (had been weaning for a couple of years) and actually was doing really well. I have been talking with my psychiatrist and therapist a lot to figure out if I need to go back on the meds. I will talk to my OB about it as well when I go on Tuesday. I think as of right now, the plan is to start the meds a couple of weeks before the EDD to give the meds a chance to get to a therapeutic level. Hopefully I won't need to start them sooner than that, but we will see what happens. It's hard because the anxiety will hit really badly for a solid 2 weeks and then ease up a bit for a little while and then hit hard for 2 weeks again...and during those times, I feel so out of control. I am managing, but it isn't easy. Luckily, I have a great therapist and psychiatrist who are always available and supportive and don't force me into any decisions, but rather collaborate with me to come up with a good plan. It's helpful to hear others are going through something similar (although I wouldn't want ANYONE to go through this, it's awful!).
If anyone wants some suggestions for sleep related issues, I have found a few things that have worked well for me. Just let me know and I am happy to share.