I think it might be best to understand your strategy for qualifying for SSDI prior to completing more of this paperwork.

You are all over the place.

Is your claim that your PN is severe enough to qualify for a Listed Impairment?

When you bring up all these issues (with a potential mental or cognitive disability) related to your work, that is a completely different tangent. You were employed at the same job for 25 years. What has changed so that you can longer manage to follow the rules that would ensure your continued employment? Are you receiving treatment for these issues?

(BTW, are you planning to file for retirement and receive a pension?)

What you're describing with regards to your hands doesn't actually seem all that serious. It's annoying, but dropping things won't keep you from working. (I have the same issues, so I can relate.) Do you have issues with fine motor skills? Can you write? Handle and file paperwork? Type? At home--can you cook? Dress in the same manner as before your PN progressed? Do your own laundry? Drive? Go grocery shopping?

The narrative just needs to make sense, and it suddenly isn't really making sense. There are a few things I can guess at that would make it make sense, but you'll need to fill in the blanks.

Please don't write in caps either here or on your actual paperwork. It makes it hard for the reader.