Hi Jirel,
The LFA office here advised against doing any of the visits to the office in person, and my atty agreed. The rational was that if you don't appear disabled, and sle mostly is invisible, that the office can use that you were able to come in, were able to walk around, and able to etc.... Then, when the appeal comes up, they can use those "abilities" against you.
I agree with the rational about documenting everything, and that it makes sense to hand deliver things. But, not if it creates problems above what you have already.
The one thing I wish I had done, was to document, document, document. Be as verbose as you can, and describe each little thing in elaborate detail. Use as many pages as you need, and describe in detail how each setback affected you and your health and what it took to come back to where you were initially. If ever you can get back. The people who did this, were most often approved the first time they applied.
Good luck with your appeal,
Sally