That's weird, never had that kind of effect when I woke up after lucid dreaming. Heck, I just had a lucid dream this morning. I'm usually energetic right after waking up from one. There shouldn't be a negative effect since lucid dreaming is just a dream where you are aware. Maybe it was something you ate before sleeping? Has this happened to you before, like before lucid dreaming? Also remember to RC to check if your actually awake or dreaming.