You aren't the first one to use personal medical conditions as a leverage in the admissions process. There are two things you need to be aware of:
1) Do NOT use this as an excuse of poor grades or MCAT score. The unfiltered reality is that a doctor MUST have competency in diagnosis and know what he or she is doing. If you got poor grades because of your medical condition, it does NOT prove that you would have had a decent grade otherwise. The same thing goes for college ranking. Just because you got a 3.2 at Princeton and were under a harsh curve, it doesn't mean you would've gotten a 3.8 at another school. It's unfair to other applicants to make that kind of assumption. So if you got any low grades during this period, don't use that as an excuse. But your overall GPA is strong so this shouldn't be too much of a concern to you.
2) Make sure that you express how this has helped you understand medicine better, rather than why this makes you more competitive. If you get hung up on trying to manifest a leverage based on your experience (which, by the wording of your post, strongly implies that you are) that is more transparent than IR radiation going through a symmetrical bond.