What causes sudden light sensitivity, preceded & accompanied by itchy/watery eyes?

I'm currently at a hotel with my family. My eyes have been itchy & running for about a week and a half (sticky "eye boogers" in the morning for the past two days). Yesterday evening I noticed that I was more sensitive to light, and right now I should be enjoying the pool with my nephew, but I'm sitting in the shade with my head under a towel. Help?