I've found that when I lift twice a week I feel better. I'm wondering if given my diet, age, etc three workouts a week is pushing it. My copy of PPTST should arrive tonight, I'm looking forward to reading the advanced novice and geezling stuff. I just listened to Rip's appearance on the "Muscle for Life" podcast (http://www.muscleforlife.com/mark-rippetoe-interview-2/) and he makes the point that people in their 40's can't train like people in their 20's... especially people like me who come brand new to strength training lateish in life. The money quote is, "hey you fucked up, it's that simple and you gotta pay a price, but what else are you gonna to, nothing?" followed by a trademark Rip guffaw.
Anyhow. I slept better last night, but had to get up early so only 7 hours. I ate a decent breakfast -- plain yogurt, whey powder (30g) and granola -- so hopefully tomorrow I'll have a more reasonable energy level.