Hi NarcGuy.

OMG LUCID EVERY TIME I'd say you're really lucky, but I see that might not be the case for you personally. I'm not sure if waking up exhausted is directly related to being lucid. I do think that even if the dreams were nonlucid, you might still wake up exhausted. I don't know how or why, but have you ever asked your doctor how sleeping directly into the REM phase might affect you physically?

When you start lucid dreaming, do you engage in your surroundings? Because for most people, not paying attention to the dream causes them to lose lucidity and just dream normally. If the lucid dreaming is not responsible for the tiredness when you wake up, I hope you are interested in learning how to gain more control once you're lucid so you don't have to ignore a very special skill. That way, you make the most out of your dreams and sleep.

Good luck!