I guess its the weather lol...even a guy like me got sick (its not that bad to be honest..just sneezing alot lol)..I don't get sick easily.
I can remember when my cousin and friends want on trip to the mountains of north east KP, its was really cold and icy water, we all want in the water, want up the mountains etc. when we came back home.. everyone was not well expect for me and my bro lol....and they though we would get sick because we are from the west..lol