so tired

I woke up at around 8:30 today. I had to get my oil changed at 11, and I haven't slept past 11 since this summer. I knew I didn't need an alarm clock to wake up. As the day went on, I kept feeling so tired. I took my polisci book and notebook with me while I got my car worked on. I lost interest after about 45 minutes, and I was mildly distracted as well. I came home, let Madison out, studied some more, and before I knew it, Adam was home. Talked to Adam for a bit, and I eventually just passed out on the couch. I thought that by having a nap that I'd be good to go. After we ate dinner, it just got worse. I even put on some tea to try to wake me up. I don't want to go as far as to drink coffee at 8 pm, but I'm almost debating it. I knit for a while and had my definitions in my lap. I almost fell asleep knitting and studying. I'm almost to the point where I want to just go to bed. I haven't felt this tired for a long time. What gives? I've been sleeping 7.5-8 hours a night, which is the suggested amount of sleep for someone my age. Not to mention that I can barely sleep past 9 am these days. Grrrrrrr.

mammothali, I'll get that mac & cheese recipe to you tomorrow! I didn't forget about you.