Daisysmom,
You've just had a great deal of stress in your life. It's no wonder that you needed a good cry. I react the same way in a crisis, I bottle it all up for weeks until things improve and then BAM! It all comes out. You haven't had the luxury of things calming down yet, but that release of sadness was most definately needed.
It's very normal. Trust me. Medication can't really numb you entirely from stress and other emotions. It can make it a bit more bearable, but you should still be able to feel and function as human. If you are worried that the med dose is too high then do see your doctor about lowering it.
I am truly sorry that this has all hit for you now, feel free to vent about it, we will be here to support you through. We are a little family. Hang in there, and let us know how things go.
Meg