Hmmm, you're someone most of whose problems are on the right side. You're unusual. I wonder if this gives us a clue. But you have a couple of things on the left, just like I have one thing (jaw tension) on the right.
Historically, I have walked into door frames and hallway corners a lot -- I simply can't be bothered with going *around* them. Takes too much time.....I've gotten better about this.....
Oh, the heat sounds terrible. I'm already dreading next summer here -- I don't have A/C either. Wish they would come up with some better personal cooling devices.