Sounds like you will be poked and prodded and asked to do range of motion and lift and grasp and other physical tasks. I hope they are thorough enough to see your physical limitations.

If they ask you to try something, don't say, I can't do that. Say something like "When I try to do that, I get a pain ..... or I feel dizzy when I bend over like that. " You don't want to be labeled as uncooperative. Take it slow and let them know what is happening as you do the task. You'll be fine.

My best to you.