I've never tried bitter melon, and I don't intend to from what I've read.
I'm speaking generally and not to anyone in particular, but if you are hypoglycemic you should, in my opinion, be very careful if you do intend on trying it.
I've read about how it can cause severe hypoglycemic drops, hypoglycemic coma even, according to a quick search on Google.
Do your research before you put things into your bodies.