I have a lifelong disabilty and will never be 100% fit. I cant manage a fire drill either. There are special arrangements for me. I have a buddy and wait until the crush is over and then I head out to a designated place for me and my buddy. If it was an emergency and we had to be out quickly they have a trolley thing, an evac chair I think its called that they could put me on.
My company insist I have a phased return when I’ve been off, and wouldnt even begin to listen to nonsense about it affecting my role.
You should have been referred to ocupational health who could have arranged all of this for you as well as meal and toilet breaks etc