[Subby]

Last night something occurred that has happened once before (about 2 months ago). It was one of the more unpleasant things I've experienced in a long time.

I primarily use my butt for sets. In the middle of the night, I suddenly experienced extreme pain-or more like extreme pressure and discomfort, exactly like I would imagine a snake bite to be. It woke me up all in a sudden in a fright and I was suddenly pulling my pump off in a frenzy. In the fright and pain I yanked and snapped the line, and the pump hit the opposite wall. (Thankfully undamaged). I think I gave my GF a heart attack with the yelling and screaming though - it really felt like a snake or a huge spider biting.

The site still felt a little sore but it was no longer biting, once I'd thrown the pump.

Not to mention how disturbing it is to be woken up like this, still half asleep I just had no idea what had happened, if some of it was a dream, or what to do, and finally just replaced the line and went back to sleep.

Half an hour later it happened again - this time it jolted me undoubtedly awake so I knew it wasn't a dream effect. I resisted snapping the line and tried to screw it off instead.

Somehow what seemed to be happening was extreme suction or pressure was pulling the canulla and line back into my body. I pulled on the pump/line, which seemed to ease it off a little, and actually spent about a whole minute trying to turn the quickset connector. It was almost impossible to screw off (completely uncharacteristic) but finally I got it.

What the **** was going on? Anyone else had this? Anyone have any intelligent suggestions?

Some things to know:
-I didn't get any alarms or warnings from the pump, and it usually seems pretty good about blockages. Doesn't mean it wasn't related to some kind of blockage I suppose.
-Lines I think can be ruled out, seeing as it occurred with two, and an old and new one.
-I put a new set in in the morning as a backup, expecting the old one to be packing up after this trauma. I need to prime new sets for a while, up to half a day, and in the meantime the old set has been working just fine. I'll switch over in a few hours.