i personally don't think it's safe or wise to try and date online. I think that the best way to meet someone is in a group setting, it takes the pressure off. I'm off the market now lol but just offering advice I found helpful when i was dating.
and as for your medical problem, if you meet the right person, they will love and accept you, flaws and all. My husband says he loves me because of my flaws, I find this hard to believe, as most love someone in spite of their flaws lol
I didn't go on my first date til i was 17. not that i'm "normal" lol whatever that is, but the best relationships are worth waiting for