I'm hunting for advice on halting a number of irritating problems that have been occurring frequently in lucid and non lucid dreams. If anyone has any inspiration for dealing with these issues, I'm open to it.

Constipated/Have to poo feeling or Queasy/Overfull/Sick to stomach feeling.

I put both these feelings under the same subtopic but the former has caused me much more grief. I have had many a lucid dream in where I felt as though I had to go to the toilet moments after becoming lucid, and thus decide to wake myself up, only to find nature really isn't calling after all and that I've just wasted a lucid. More recently, I've stopped waking myself up. The feeling persists and I cannot seem to make it go away in-dream, and it draws too much of my attention away from the happenings within the dreamworld.

Empty Realistic Dreams, No dream control, Sky domes

Simply put, the dream will be set in a highly realistic recreation of a common life setting. (My house, my high school, my college campus.) No dream characters will be present, not even animals. The weather is often clear, high noon, with not a single cloud and no wind. In some instances, I have dream control abilities but cannot summon characters. (Generally the only thing I can manage to do is fly). I will attempt to fly away but hit the sky, which is like a dome of a painted backdrop or mural representing the sky.

Other times I cannot fly. I have attempted to walk to the edge of my mental map of the area in hopes that I will encounter something interesting as the dream cannot continue to create the realistic environment, but have yet to succeed. Sometimes I find that the environment (building or arrangement of buildings) simply repeats itself endlessly in all directions. I also cannot seem to wake myself up within this dream, something I have normally no trouble doing.

High School Dreams with false memories

I've had tons of these dreams since the comp (1-2 a night consistently since the competition) that I'm back in high school. Every single one of them has a veritable firewall of false memories telling me that "I'm back in high school because there's some class I forgot to take." or something. Despite my best efforts, I cannot seem to become lucid or reality check within these dreams.