Exactly Sue - the same after a hysterectomy. I seemed to be doing OK so thought I'd have a little drive one sunny afternoon. So, though first visit, petrol station literally round two corners from my house. About a quarter of a mile. Fine till I stopped at the pumps and pulled the handbrake on with my usual gusto - my seat shot back on the runners - way too far back for me to reach the pedals.
To be absolutely fair, my husband had offered to clean it (inside & out) a few days earlier, and so had obviously moved the seat back, to vac. This was a Mk I Escort estate, so there were sort of 'notches' on the runners and you had to make damn sure the seat mechanism was holding the seat firmly in place again any time you moved them. They were all made like that in 1971! LOL - and that's exactly what they did, whenever you hadn't made DAMN sure LOL
So of course, I immediately plant my two feet on the floor, reach my hand under to move the lever to the side to release the mechanism and try to hotch the seat forward with the weight of me transferring to the seat squab through my bum - the normal method to this day. Oh SHEET!! (not the word I really shouted out at the time) - No Way Pedro - FAR too painful. So anyway, I got out and put some petrol in, with the spare arm across the scar, supporting my innards. Went in and paid. Came out and tried to do it from the outside - I couldn't apply sufficient pressure to the back of the seat to move it at all. Fortunately then, a car pulled up to the pump behind me so I had to ask the driver of that to do it for me! He must have thought I was a nutter since I didn't explain, must have thought 'how the hell has that woman ever got anywhere in a car, if she can't even do that!' followed quickly by 'Bloody women drivers!' no doubt.
I drove straight home and put the car keys away again, suitably chastised! Took about another 10 days before I dared try again! If I couldn't do that - I'd never be able to do an emergency stop safely was my judgement.
You just don't realise what you use certain muscles for, until you can't! It was an excellent lesson to myself at the time.