Getting sick after taking ecstasy?!?

I went to a three day rave and took a considerable amount of ecstasy each night. I probably slept a total of 8 hours over the last 3 nights. Also, I haven't really been eating all that much, however I have been drinking water when I was rolling. I didn't go to sleep last night, but in the morning I started getting a scratchy throat and a runny nose. As the day has progressed, I've been sneezing, coughing, I have a headache, and have a runny/stuff nose; my head feels really full and I feel like I'm in a cloud. I have the chills as well. Am I getting sick or is my lack of sleep making me feel this way?