Honestly, I think you have a chance 
But, real talk, it’s Yale (its hard for everyone). Good luck!!!
bump
I feel like you measure up to other applicants, at that level I think it will come down to your essay. Best of luck.
Any more feedback? 
You seem like a viable candidate for most of these colleges. However, while I do see your dedication and initiative to pursue medicine in any way, I do worry that many, MANY, other applicants who are seeking to pursue in the medical field will have similar EC’s that you have that are medical/science relate. You have a shot nonetheless, but I’d expect you to bet on your essays and LORs for acceptance to Yale at this point. Good luck!
Chance back?
http://talk.collegeconfidential.com/what-my-chances/1847372-final-chance-thread-ivies-stanford-ucb.html
^ Done.
In the grand scheme of things I think my essays were probably the best I could’ve put out - so I’m happy in that regard. I’m worried about one LOR (in terms of length and substance) but I hope the rest will be pretty excellent… can only cross our fingers at this point however!
^ Touche!