What Causes Blisters,dizziness And Vomiting After Playing In A Pool?

I went to a waterpark this past Saturday (it Is now Wednesday night) through the week I have been weak, dizzy, and feel like Im going to throw up, I've also had a migraine since saturday. I have blisters everywhere and in some places the skin Is yellow. Im pretty fair skinned and the week before I got a little burnt on a canoe trip which is where the yellow dry skin is. What does the yellow skin and blisters mean? And Is everything else just side effects or should I see a doctor? -kim