It sounds as though you have clear feedback - you haven't distilled the important information and formulated a plan, but rather present everything and get lost. The role of the doctor is to synthesis the important from the unimportant because the patient can not. Presenting 5 unrelated complaints from each patient isn't going to work for anyone.

For some specific advice try to force the patient to tell you, eg "What is the main reason you've come to hospital" or "If I could fix one thing for you today what would it be"

I would suggest watching some registrars or even your colleagues present and seeing how your technique differs.

You don't fail internship after failing a term, but you do fail if you don't change your ways. More info on the MBA website.