lol you will be fine, I lost about 90% of mine, when I transplanted from the ground. They went threw a week or two, of what looked like a slow painful death, but now she is growing beauitfully again.
What happens is, the your plant cant grow until your root mass catches up to the size of the plant. So the plant will appear to be dieing, but really she just waiting for the roots to hurry up.
Just be patient, a high phosphouros nute supplement would be really nice, woodash will do, but dont over do it. Superthrive also works good, 1/4 teaspoon a gallon, any more and you might end up with a hermie
Hope everything goes well. Goodluck buddy : )