do you have a phone or other device that can do a silent recording?
if you do, you can make your own, but....
the actual value of recordings is overemphasized. the only real points of use of these is to keep them honest (if they know there's a recorder running) or to prove misconduct. if you need to go to appeal, then the tribunal won't care about the process, they will base a decision on your medical evidence.
take along everything you can. if you want help with explaining the problems caused by your current treatment, then
equationgirl is the best person to help with that IMO. Get evidence of side effects of the treatment, and highlight every one that you have experienced and note it's severity and it's effect on your life.