Someone6503,
I am no expert but the worry may very well be part of the OCD. Have you talked to your doctor about this?
Again you ask some very good questions and again I am sorry that I don't have the answers.

It seems you may get some relief from staying busy. I understand this is temporary, limited and sometimes hard to do but a little relief can be of some help.

Do you see a therapist as well as a doctor? This could help too, maybe.

I am sorry that you are going through this and I hope you keep sharing and that it can help.

Take care.