Why do you go from extremely high intake to decaf, or do you mean to not go back to using caffeine for your next project? For me a 200mg tablet in the morning works well, more doesn't give me more benefits and by bedtime a lot or most has gone.
I had no idea there was withdrawal, and I have no psychological addiction to it, so I just switched to decaf not thinking anything of it, other than that I'd probably be more tired for a while.
