Sleeping even more

I didn't go to the beach on Sunday because I felt so sick and dizzy. I feel like crap, because Geo's family has a new(ish) baby (1 and a half years old) and I want to spend time with her. But I don't have the energy to do anything. Sunday I didn't do too much, but was up for most of the day, and didn't fall asleep till 4am Monday morning
Monday, I slept pretty much all day since I had gone to sleep so late. I also started that wonderful thing called my period, and have had cramps and other fun things. I had almost no energy, and was out of bed for maybe an hour and a half total for the day. I didn't fall asleep though, until after 5am.
Today I woke up around 4pm... I have a lot of pain in my right elbow, making simple things like putting my hair in a ponytail almost impossible. 
My mood swings have been totally out of control- going from angry to crying in less than 2 minutes, and around and around. I call it mood roulette- the wheel spins, I get a strong emotion, wait about a minute or two, then they spin the wheel again. I always get mood swings like this when I'm on my period, which is why I didn't get it (birth control) for 6 years. I may or may not need to go to the hospital. 
I figured out what was causing the headaches- I have been dehydrated. I have barely been drinking any liquid lately, and what I was drinking all had caffeine in it (which helps dehydrate you). I was drinking less than 16 ounces (the bottle was a Lipton tea bottle, 16.9 ounces, and there was still an inch or two left in the bottle at the end of the day) in a 24-hour period. Yesterday I drank about 2 quarts (your 8 cups of water a day) and I've drank about a quart already today. 
Okay, dinner is done, I'm going to post this and go eat.