Breathing can be hard to figure. I'm not on oxygen and one of my goals is to stay that way. So I walk for one thing. One day I can go out and walk for ever ( I Wish ). The next 50 steps into it feel like I can't make it back. Keeps us on our toes. Eat a meal one day and fine. Eat basically the same thing the next day and within the hour so bloated I can't breath. Tricky How about you guys and gals ?