It seems I'm late to the party. (My surgeons spent the day destroying the OR board and my brain. Lots working, much doctor, many anesthesia.) First, a couple thoughts I had from statements the OP made:
@Med Ed isn't being judgmental. He's acknowledging a simple fact: med schools get
thousands of applications for -- at most -- a couple hundred seats. And thousands of those applications are for great candidates who can contribute to the medical community in diverse ways. There's no realistic way adcoms can thoroughly evaluate every aspect of every application, so they thin the ranks by excluding many candidates due to various "undesirable" or "risky" attributes: low GPA/MCAT, previous IAs or criminal records, history of substance abuse, etc. Since there are so many applicants, this thinning of the herd doesn't decrease the quality or diversity of the matriculating class. It's wonderful that you've turned your life around, but actions have consequences and you may have permanently precluded yourself from a career in medicine. You need to enter this process knowing that you're fighting an uphill battle with a very high risk of failure. As
@Goro says, have a plan B. Always have a plan B.
I agree that an explanation needs to be honest. However, that doesn't mean you need to give adcoms an all-access guided tour of your darkest times. Adcoms expect honesty, but they don't expect absolute disclosure of deeply personal experiences. The spotty time in your background could be honestly explained thusly:
That's just a very basic example, but what I hope to demonstrate is that you can be honest without showing every card in your hand. I agree with Goro: save a more substantial disclosure for secondary essays or interviews.
@gonnif's advice (post #49 especially) is pure gold. Take every word of it to heart. With respect to my colleague, though, I do believe it's possible and even advisable to do a gradual "reveal". I think you should make your personal statement as benign (but honest) as possible. Once you've got some schools interested, you can reveal more and more; as they come to know and trust you, they'll give you more and more latitude. Think of it like dating. You're on your best behavior on the first date, display a few endearing quirks during courtship, and then unveil the full measure of your nuttiness during the first year of marriage.
I remember a case I had about a year ago when I took a young man to the OR who was a recovering heroin addict. I gave him 50 micrograms of fentanyl (quite a small dose) on the way to the room and it completely zonked him. I was so happy about it that I told my CRNA, my surgeons, the OR nurses -- everyone involved in the case! --
He was telling the truth! He's clean! The fact that my patient had turned his life around gave me as much joy as if he were my own prodigal brother. What I'm trying to say is that I believe in redemption, I believe that our trajectory is
at least as important as our current location, and I believe people can overcome terrible decisions and challenges to become who they ought to be. I wish you success as you apply, and I hope you can use your own experience to bless the lives of others who need a helping hand.