Is it normal that i had a romantic dream of a co-worker that i barely know?

So I just got a new job about 2 weeks ago and I'm still knew and still getting to know everyone there. There is this pretty cute, attractive looking guy that is a cook there. Im pretty shy and tend to keep to myself but I talk when I need to or I have my moments where I mess around. This guy and I have had a few small talks so far things like; where did you work before, saying hi, messing around on the drive thru head set, or even messing around like him just trying to be funny. I noticed that many of the girls at my work love to talk to him so I don't usually go up to him to strike a conversation.

Anyways, yesterday I left work early because I wasn't feeling very well and so I didn't really see him but for the 3 hours I did work he would come back to the dishwasher area to drop off dishes but he is a cook so it wasn't normal for him to be coming back like 3 times. However after I left i went straight home to rest and get better. I was with my sisters; they're on vacation so I was distracted not even thinking of this guy and I decided to take a nap still have not thought once about this guy since leaving work yet I had a romantic type of dream It was the two of us at our work, weird right. But we were talking, messing around, then flirting, and then we were holding hands and laying down then shared a kiss as if we were transitioned somewhere else but it was still our work place and then I woke being like whoa did I really just dreamed about this guy I don't even know him. Yeah I find him cute but I don't know much about him and I am not thinking about him all that much.

Then today I had to go to work and as I came to work I saw him so I was very nervous. I mean I've been nervous around this guy I have tried really hard not to seem like an idiot but today I was very nervous since the dream. It went pretty well however, he made a few jokes and would look at me and i just smiled or laughed slightly cause i did find it funny not cause i think he's attractive. And we had typically moments where we like glanced at each other. He did come up to me to ask me to charge him for his food which he's done that more recently unless one of the other girls is like I got it for you and I'm just like okay well sorry and i continue with my work. He did mess around and like pretended to be a customer and order something while I counted my register. But here is the interesting part, I got the okay that my register was good and I can leave and I went to go get my stuff and i guess he got his second 10 minute break and he came to the back and asked me where I was going, I said home, he said "who told you that you can go", and i replied being my sarcastic self uhh my boss". He started to mess around and say I'll go with you, you'll buy me food and I responded saying "no?" we both went to the fountain drink area because we both were getting water and as he was serving himself he randomly tells me "You make me nervous" I was taken by what he said that I responded, "what, how?" and his response was "idk you just do" and he walked away, clocked out and headed out. and i finished clocked out and headed out and i saw him walking towards his car and i thought about calling him to ask or to just say something but I decided not to. The way he said didn't seem like it was a bad thing but it was just very random and it took me by surprise especially with feeling nervous since having the dream I had about him.

Is this normal or I'm just crazy.