Based on the following symptoms, what is wrong with me?

It is 4am where I live. I woke up at 2:30am wide awake. This never happens. I have a headache, stomach ache, extremely thirsty, nauseated, and every muscle in my body is hard to move. I feel spacy and I had some chocolate cake before I went to sleep. I tried to drink some diet caffiene free dr pepper and that didnt take away the thirst or make me feel any better. Does anyone out there know whats wrong with me???