tired

I brought a lunch for tech fest today. Well, snack foods. I ended up eating 2 slices of pizza instead :/ I think it's making me tired! Or maybe not. I'm just exhausted. The calories for two slices was about 650-700, so that's not bad. I may also be tired because I'm not taking in enough food. This week I've been a lot tireder and I've lowered my calories. I need to look at that a bit and adjust something so I don't plateau because of LACK of calories.