I guess the only way to find out about your medical is to bite the bullet and take it or maybe phone an AME for some advice. My doctor reckoned you'd need to be almost dead to fail it but he might be pulling my leg...
I wear glasses to look at this computer screen, I'm partially colour blind, and I get airsick doing steep turns. I have to fly with 2 pairs of glasses, I can't fly at night or in IMC and I guess I can't do aerobatics either but I passed and I'm learning to fly!