Must have fainted for the first time ever, should I be worried?

I am a 27 yo former college athlete who has never lost consciousness before, even while playing college football, and am currently in a surgical technology program interning at a local hospital. Today, as I was in the middle of assisting with surgery, I guess I must have fainted. I was holding the laproscopic camera and waiting for the surgeon;s next order when my vision started to get foggy before completely going dark, and the next thing I knew, I was being helped to the ground by the rest of the OR staff. The preceptor saw that my hand holding the camera was shaking and had the others catch me before I fell. I still kind of remember hearing what was going on around me, lots of raised voices, then my vision came back as I was lying on the ground. The staff helped my into the recovery room and took my BP, HR and pulse ox, it was all normal (118/68, 73, 96%), and helped me to lie down for a little while. It took me a couple hours to fully feel like myself to the point where I was able to walk out of the place and my gf took me home. I have never fainted or even lost consciousness before, no history of epilepsy or nervous system problems in myself or my family, and am still in relatively good shape, even though I don;t work out as often as I did. And this was not my first day in surgery either, I have been in the OR setting for 2 months already. The only other thing different is that when I started moving around afterwards, my quadriceps and hamstring muscles in my legs felt really really tight, like I had just run 10 miles or deadlifted a lot of weight, then became really sore afterwards. Is this anything I need to be really worried about?