discharge

so I was running today in track (gym) and I had a weird feeling like I was peeing. I thought it was my period so I took my friend to the bathroom with me. I looked at my underwear and there was a clear substance with a few clumps. It also smelled really bad. it looked like I peed, but it was for sure discharge. should I be worried or is it normal? I'm only concerned because there was an abnormally large amount.