Man that sucks big time. Make sure you really keep a close eye on her.
A couple of years ago while shoveling snow I had a fall right onto my back and popped my head back and smacked the concrete. I finished shoveling and came in and told my wife what happened and she said will maybe you need to go lay down and take a nap for awhile. I told her that is not what you have a person with a possible concussion do. You want to keep them awake.
The way my wife and I unload our camper is she goes in with a couple of plastic tubs we have. She fills them and sets them at the rear of the camper and I pick them up and take them into the house. It is just to dangerous for anyone to come down camper steps with their arms full. I have a very good set of steps as I put a Fox Landing on my camper so very sturdy but someone can still take a tumble by missing a step.
Hope all stays good with the wife.