I am not sure if there is any name for this effect but I will describe it and maybe you can tell me. I am normally a quiet person. Not very much a chit chatter. But the couple of times I have taken a nap on the living room couch in the middle of the day, I get woken up about 15-20 mins in to it by the sound of family talking near me. I feel fully energized and then I immediately chime in about whatever they are talking about and I am talking faster than I normally do and my thoughts filled with so much that there is not enough time to tell it all. Then after a bit, my brain dies down again and I return to my calm, quiet self. It did feel kind of euphoric. I am curious if this can mean anything.???