Requesting guidance: doctor appointment & covid test / vaccine anxiety

I have a long-time affliction that requires medication in order to function.

The medication I take is a controlled substance. Due to that fact, and local regulations / laws, I have to do a blood and urine screen once a year to ensure that I am taking and not abusing said medication and to monitor things like vitamin d, iron levels to ensure all is still well.

Well, because of the state of the world this last year, I have not had to submit to this for over a year.

I have had video doctor appointments and have avoided going into any medical facility at all.

I knew it was coming, and sure enough, today I was informed that I need to come in to get this done by the end of next month.

I am having high anxiety about this.

I do not want to be asked to take a covid test or a vaccine, period. I don't want to be in a situation to where my denial could possibly put on a list. Just going into a medical facility right now gives me anxiety.

I have a vaccine injured child.

There are plenty of things going on with these Covid vaccines that make me have significant concerns and doubt the safety. On that note, I feel the same regarding testing for Covid. Besides, I haven't gotten sick this entire time and there aren't any factors to indicate that I was at risk.

I have no idea if they ask of these things for simply going in for lab work, but I wouldn't be surprised, and I'd like some guidance as to how to handle the situation should they try.

I might be overthinking and being paranoid, but I have a lot of anxiety and worry and I'm trying to feel more prepared concerning this matter.

What should I do if asked to take a covid test or a vaccine when I do not want to, and how can I avoid documentation upon refusal?

Has anyone gone in for labwork recently? Were you asked to take a test / vaccine?

Any help would be greatly appreciated.