Straight man having Gay thoughts?

21 years old, and I consider myself 100% straight, lust after women like an animal, admire their beauty to the fullest extent possible. Even last night in a club i was checking out the dancers and the few good girls there. But in the morning i had a gay dream, and then later i wasnt repulsed by gay thoughts but kind of turned on in a way. I still cant see myslef kissing a guy, or having a emotional connection with one, and i always was confident of my uality but its messing with me right now. I am not getting weird thoughts anymore but was today. What is up with that?