So, after emailing a few doctors, I finally got an answer about my hormone/clot situation. An endocrinologist in Pennsylvania wrote me to say that having a history with a clot does not make me ineligible for feminizing hormone treatment, but that I should be sure to discuss all of the ramifications with my doctor, should I decide to go back on hormones at some point. Phew. I don't know what I was going to do if I was banned from hormones for life! That's like being banned from air or water. I need me some feminizing medicine!