I saw the same programme and was really worried when my partner was called in but where she went couldn't have been diferent. Friendly, helpfull and above all respectfull, they actually seemed to understand and treated her as a human being! Trouble is for you, up to the age of 60 you are still within the bracket that they are supposed to try and help back into work. Explain your condition to them and if I were you, I would say that you are unable to travel to the appointment due to your condition if you can't drive or manage the bus then they can't expect you to attend. If you are like my partner and manage to struggle around and don't make a fuss about how much pain you are really in then they will more than likely say that you are fit do do some kind of work. As crazy as it sounds, one organisation expected my partner to go on jobseekers allowance and start looking for work despite being on a coctail of drugs including morphine for her pain. She was off her head most of the time and couldn't possibly even travel to sign on let alone work. It really is disgracefull. It was sorted out at appeal though and things are much easier now. Good luck with yours