How old are you? I'm about to hit 45 and have been on that path for about 2 years now. It started with sleep apnea but I've had that under control for 16 months now. I feel like I'm becoming too slow to be a proficient coder, and I lack the people skills to move to management. I'd pick a lower-stress career, but I've got alimony and need the income.

I've tried getting fit. I've tried improving my sleep. Vitamins, herbs, etc. The only things that work are tobacco(not nicotine, it just makes me sick) and armodafinil in small doses.