I do float! In the water! Sometimes!

Confession time - I've been reading tons on your forums, trying to get inside your collective noggins to better understand my own! I've chatted with some of you wonderful people (under the name 'Incarnadine') and received great advice there!
I'm a late-30's MTF who's not sure about a lot of things. I come from a strong Christian background (read a TON on that sub-forum!), married, four kids, tons of questions, terrible self-confidence, etc. I tend to over-analyze; I am losing weight via South-Beach; and I enjoy playing video games and chatting on Facebook.
I have already read the rules, post-count, reputation explanations, etc. I look forward to posting questions of my own, chatting with you's guy's, and seeking guidance and encouragement as I learn more about myself.
I've shared my feelings with my Mrs., who being from the same religious background as myself immediately told me in no uncertain terms that pursuing this course of thought or action would result in a cessation of marital bliss. I've shared with my PCP, who referred me to an endocrin; I'm nervous about making that appointment.
And last but not least, I hail from upstate NY - MILES from NYC - if I never have to visit there again, I'll be happy.