I normally feel like that if i dont get enough sleep (i need about 8 to 10 hrs a night, like a pre-schooler LOL).
During the day, i'll try to move around a lot, as i find that as soon as I sit down I'll.... err.... ZZzzzZZZzzzzZZZ like a baby again. My peak efficiency is between 7am to 12 pm. Then between 12 to 4 ish is a low ebb (if i can have a kip during my lunch break that helps a lot), my energy peaks up again for a couple of hours when the sun goes down (my boss used to call me a vampire until i pointed out im hyper in the early morning as well).
If i've been to the gym, Im fine after the session, the day after... but boy I am steam rolled the 2nd day, sometimes i cant even wake up with 3 alarm clock screaming in my ears.
I'm keeping a chart of my activities and how fatigue hits me... and so far I can see it takes a day or two after an intense burst to make me feel really BLEH. On days that I know i need to work intensively (Im working 2 jobs to pay for my university fees) I make sure I get at least 9 or 10 hours sleep before hand, and 9 to 10 hours a night the two days after the heavy activities. So far the trick is working.
The only down side is my rest days (weekends) are the days where most of my friends wants to get me to get out and do fun stuff with them and I'll have to refuse them many many times as i need the beauty sleep LOL.
Right now i'm just sitting on my bed, having a cup of tea while going through this forum with my little kitty purring on my lap. Thinking of having another 2 hour nap before i meet some friends for dinner today. Had some co-codamol earlier because my hands are a bit buggy this week.... oddly enough codeine makes me hallucinate slightly lol. Pardon the swear word in the following image... but it illustrates me perfectly for the moment
good grief, here comes the jackboots.
How about this one then?