Is this anxiety or something else?

I at least recognize anxiety (social in particular) and OCD. I may be wrong, but the inability to move sounds like a carry-over of sleep paralysis I've experienced myself. Hang in there. And try to remember that the average person is so wrapped up in themselves they won't notice what you buy. Also remember that what you feel RIGHT after a situation is more real than the picked apart version you create for yourself later. Maybe you can ease off worrying about home invasion if you put bells on a few doorhandles.