Be careful to only apply rescue remedy to your skin while pregnant! It will work just as well. I'm sure it's not unsafe, but there is a warning on the package, so that's what I do. Comes in really handy for freaking out babies/toddlers on the skin, too, for later.
Falling apart is par for the course..it's all hormones..I know, I'm doing it at least once a day these days..not full out crying, but just little tantrums and whiny fits. Then I spend hours feeling guilty for being such a mess!
It really sounds like your body is preparing itself for your labor. You can take some red raspberry leaf now for your uterus to tone up. Also make sure you have a daily dose of extra Vit. C to keep your waters from breaking too soon