rosebud anemone, please help!

[Chooki11]

I was wondering if it's normal for this anemone to, i don't know how to explain it other then, slowly vomit long stringy hair looking substance. As it was "vomiting" it's mouth was wide open and it began to shrink....this is actually happening as I type this. So i'm not sure of the outcome as of yet, but would like to know if anyone else has experienced this???
Please help!!!
Thanks!