It's a medical that is easy to pass if you meet the requirements and hard if you don't. The AME wants you to pass. It concentrates on your ability to see, hear, move and remain conscious so looks for things like diabetes , heart conditions or high blood pressure. If you have an issue it works out how to fix the thing to get you a medical. I've known people walk in with undiagnosed heart conditions, then get a medical after a life saving pacemaker.
Ive also flown with people with missing limbs so a bit of a limp is generally not an issue.
It's not a big deal. Generally if you can walk in and see to sign the cheque you pass. If not you find out something about yourself.