Bren,
Wow, that is a lot of stress! Remember that it makes sense you will have a more difficult time coping with all those major things going on. (As I type that, I realize it's good advice for myself too during what has also been a very stressful and difficult month for me.)
I've found that it's important that no matter how busy you are you create some down time for yourself. Whether that's going for a walk, taking a long bath, reading a good book, watching a chick flick, or whatever, giving your body a break will just help you cope with everything else that much better. Make sure you get some "me" time doing something calming you love!
Also, let yourself cry if you need to. Your body probably needs to discharge some of that energy from all that stress. I know I tend to try and hold it in to "keep it all together" but that can just make the anxiety worse. You want to let the pure feelings out if you can - fear, anger, etc.
You may want to talk to your doctor about possible side effects from Celexa just so you're clear with what's going on in your body.
Hang in there and keep working on those positive thoughts. It always takes the body time to recover - from surgery, from anxiety attacks, from stress. Keep us posted on how you're doing!
Teebs
