Freaky Thumb AKA "Non-Bendy"

My thumb on my right hand does not bend. It never has a day in it's little life. I went to an orthopedic specialist when I was about 6 and it turns out my thumb's tendon is under-developed so it never had the strength to bend it. It looks a little freaky... have you ever seen a thumb with no creases?! It's bizarre I tell you. I am used to it. When I was a kid it was a topic of conversation. Kids enjoy showing off their hidden talents like being able to flip their eyelids inside out, but I was almost always the coolest, as mine was a congenital abnormality that no one could learn how to do. In my teenage and young(er) adult years it felt like something to be ashamed of, so I hid it as best I could. Hell, I didn't even tell Aaron until we had been together for about a year because I was scared he would break up with me for being different. LOL. I am so melodramatic at times, its not like it's my leg or neck that doesn't bend. Lord.
Once in a great while, I will be going about my day, doing countless insignificant things and I will see my left thumb bend and think to myself "OH MY GOD! I DID IT! IT BENT! MY THUMB CAN BEND!" And then I realize my Non-Bendy is on my right hand. The first couple times it was quite a let down! After that I laugh at myself, call myself an asshole or some other insult equally fitting, and go on about my day.
Recently, Aaron and I were sitting on the couch and he was showing me some sign language that he learned because his first girlfriend was deaf (I am sorry, if he can look past a girl not having one of the 5 basic senses, why in the HELL would he care about a thumb?? Stupid girl...). I realized that I was not able to do some words/letters because of my thumb.
This made me wonder, half kidding, half honestly curious... does my non-bendy mean that in the sign language community I would be considered to have a speech impediment? LOL
Just wanted to share this. It almost feels like I came out of the "mild, insignificant congenital abnormality closet". LOL. I hope my baby can bend everything. You know how new parents count all their kids digits? I will be bending mine. :)