crush on the boss

i work at a small bookstore and our manager just started. i never had trouble talking to people but whenever she's around my palms get all sweaty and i stutter like crazy. weird because we're supposed to be professional here, right? so why does it feel like a date when she asks me about inventory levels or new book arrivals? i've never felt this way before, and it's really distracting. maybe i should just tell her and get it over with?