Roisin
You can but they may not carry the too much weight. If you have any old reports (two or three years old), then these be more effective. Tribunal panels are used to claimants struggling to get up to date evidence so providing you can show that your old report are still applicable to your conditions as they are now or indeed you are worse, then these should help with your appeal.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems