This is almost a daily event for me. I was forced to end my carrer because I did not know from one hour to the next if I was going to have an episode like you decribed. I take this roller coaster ride all the time, I have made it a point not to get to far from a restroom. I have had countless outings/events that I had to suddenly leave when this happens. I feel like I have no control over the body I am forced into living with. Lots of times others just don't know how bad I feel, it's horrible, for me food is the enemy, I have had to fast if I am not at home or near a restroom. It is real frustrating.