What should I do about my slightly swollen hip?!

I was doing a trial class of brazilian jiu jitsu when my hip started hurting a lot. If you know anything about brazilian jiu jitsu it is a pretty physical martial arts. I started feel my hip hurt a lot when I was on my back and had to thrust my hip to get my sparring partner off of me. When I did that, I felt like I put a lot of pressure/strain on that hip and almost like it was going to pop out of its socket. After that, my hip has been slightly swollen and i feel a bit of a strain when I walk. Should I just ice my hip and rest or get it checked out at the doctors?

(I should probably check it out at the doctors but I had a similar strained feeling in my arm before and that went away.)