Just reading this -- glad to see Maggie May is OK!
I would think that if it's not bothering her anymore that she ended up swallowing it and is fine. It probably was caught in a weird position in her throat or something that caused her to react like that. I remember when Jackson was a puppy and he had a rawhide bone that he found from my mom's dog that was all soggy and mushy and he swallowed it and it got stuck in his throat, I was sooo scared, but he kept trying and finally swallowed the thing.