i feel the same way, which is a big part of why i refuse treatment, but you have a pesonality, just like i do, your OCD doenst make you you, though it is a part of you, its the kind of part you can replace if need be.
you should try alot of new things, decide what you like, dont like, and what you want, and befor you realize it youll know exactly who you are again, you always knew, you just need a little reminder after such a change