I basically thought the same thing throughout my entire pregnancy. Tommy and Joss basically had to remind me that worrying about everything was only going to raise my blood pressure, which in turn would make my doctor mad at me.
Anyway. Back on topic. Real talk: like you said, this is normal. It does suck titties. And you'll probably feel this way for a while. But this too shall pass, as they say, and you'll go from doubting yourself to feeling like, 'I will cut any motherfucker who breathes wrong in their general direction'.