I think CMC is a well-chosen ED reach. They give a pretty substantial ED “bump” as I’m sure you know. They’re need-blind for domestic and need-aware for international, and you’d actually be better off with need-aware, but I think you’ll be considered domestic. It’s not a slam-dunk by any means, but CMC doesn’t have ridiculously high stats despite its low overall acceptance rate. If your essays and recs are strong and your counselor letter vouches for the impact of the medical issues, I think you have a shot. Bowdoin and Tufts are a bit reachy as ED2 choices, should it come to that. WashU is too but they do like full-pay ED applicants.
Do you have matches and safeties that you could be happy with?