I am sadiq from bangalore, india. I came to malvern, PA, USA 3 weeks back for work. I went to ocean city beach today (saturday) with my friends. After 2 hours of swimming in the beach, when we started, I fainted for couple of minutes, then after drinking ice water, i got it ready. Before entering to beach, i had chicken cheese pizza (First time, i am eating pizza from usa). While returning, I vomitted all pizza and feeling ok. When reached hotel, i got fainted again and managed to go to hotel. When I was in the beach, before fainting, my body was completely itching in the shoulder and i continued to play in the beach and then started leaving there. When i got fainted, I am able to hear what my friends are talking and able to answer them. I am confused, what could be the problem? This never happened before in india and this is my first trip to usa.