Wow, Kitty! A lot more commonly experienced than I realised!
My psychiatrist also prescribed antipsychotics (which I hated because they knocked me flying) to help me deal with such experiences. He told me to keep them handy and use them as and when necessary, rather than take them continuously. My main treatment was mood stabilisation.

Like Beth, my approach was to let my pdoc know at every 6 weekly review what had happened (unless critical). The experiences weren't even given a label - just treated with fast acting antipsychotics when they occurred.

As far as men in white coats and whoopee rides to hospital go, I'd rather be completely nuts in the privacy of my own bedroom, thanks. Especially if it is going to be short and we can treat it at home. Hospitals freak me out!

Oh - context: I'm practically unemployed, and my approach may not be the best for people in an office job who may start flipping out in front of the boss or in a high level sales meeting.