Oh, LL! I'm so sorry to hear that! I had one a few years ago and it was AWFUL. But if it makes you feel better, they told me the same (that I'd be prone to them) and I have not had another one. It has been at least two years. To make you feel better... here is my story.
Saturday night/Sunday morning. Pain woke me up. Didn't know what it was. Tried to power through (I hate doctors) but couldn't. I had, however, seen enough Grey's Anatomy to know that the Dr. in the ER could be cute.

So picture me, doubled over in pain, vomiting, and in the shower shaving my legs just in case.

Once I got to the ER I got a morphine drip.
I remember the nurse telling me the pain was on par with child birth. I told her that if that was the case I was NEVER having children.
Anyway, as I said, it was an awful experience and I was very afraid of repeating it but- knock on wood- I've been ok. I will say I am obsessive about drinking water and drink nearly obscene amounts every day. Not sure if that makes a difference or not.
Sorry you're dealing with this and, yes, if I go to Disney you can definitely stow-away!