Thank you all for sharing. It's much appreciated. I'll take all the advice into consideration and will likely ask for sedation while they're doing the procedure. MrsD, I'll also mention what to the physician doing the procedure. I'm sure they're aware of all such side effects, but screw it up by being careless now and then. But that's all the more reason to remind them of precisely how they can screw up and cause us patients serious and long lasting problems. Thanks again.