Should I date my co-worker?

We work in two different departments and I see him occasionaly when he comes up to my floor. I feel like I am sooooo infatuated by him, like, this is the biggest crush I have ever had in my life. My heart skips a beat when he comes around and I can't breathe when he is close to me. I just want to reach out and stroke him, just one nice looooonnnng time. When he is talking to me, I just want to kiss him and start making out right then and there. He was sitting very closely behind me the other day rocking his leg and it was tapping my azz. It was driving me crazy so I slid up. I'm not sure if he knows that I like him yet but I want to make it known to him very soon. He asked when was the next time that I worked and it just so happens that I'm on the same schedule as him. Somebody please tell me... What do I do?