I'm so glad she is doing better. Thats great news.
There has been alot of talk about colic during this thread and I want to take a minute to clear up a misconception about colic. Many people have been told that if your horse has a bowel movement, he isn't colicing, or his colic is over. This is not true. If your horse has stopped having bowel movements its too late, his guts have already twisted. This requires major surgery to repair and many times the horse has to be put down. Colic is not the twisting of bowels that is actually a result of colic sometimes.
I once had a very old horse here that tended to colic. He would reach his head around to his sides, go off of his feed and lie around. He rarely rolled, so we didn't have to walk him. I've seen many people make a miserable horse even more miserable by not allowing him to lie down when he had a stomach ache. Its just not neccesary to keep a horse on his feet unless he is rolling badly. Then you risk twisted gut.
Alot of things can cause colic. Sometimes its nothing more than the same things that cause us to have stomach aches, like too much food. Other times its something that needs to be treated, like chronic ulcers. The first will go away within hours, the second won't.
10cc's of betamine is the common treatment for colic. Just remember the drugs will make your horse think he is all better before he is. So withhold food (not water) until you are sure he is over his episode and you know it is not something more serious.
Hope this helps someone out there