Well, had the mask fitting, and it was much easier than I anticipated. Yeah, it was tight, but I could breathe and everyone was telling me what was happening as we went, so it wasn't bad at all.

The doctor stuck his head in while the IV was being started for the CT scan, and asked about the mask fitting and any anxiety, claustrophobia. He offered a relaxant if I needed it, so you might check with your doctor on that, if you feel it would help.