I'm in the boat with tempest....it sounds like you're body may not be getting enough fuel. The body's cells run on simple carbohydrates and if you don't get enough of them in your diet then your body is going to begin taking them from somewhere else......as in from taking apart muscle and fat tissue. And if it get's to that stage things can get......loopy. If you've ever water fasted then you will know the feelings.
Getting stitches......could be something as simple as not getting enough water. It's said that when a child is born it is up to 90% water, and at death the content of water has been measured to be as low as 50%. Chronic dehydration is pretty rampant, and simply changing that brings tremendous benefit to many people. I find it a good practice to wake up and drink up to a quart of water first thing in the morning. And I try to drink a large quantity of water 20 minutes or so before a meal. If you find it difficult to drink a large amount of water it could be a sign of dehydration.
To talk about diet.....there's so much info and mis-info out there it's hard to know where to start. But I've seen and read of miraculous things happening when people adopt a raw food diet, especially when it's very high in fruit. I've found it to be the cleanest and most energizing way to eat, and the health benefits are astounding. Though, the simple thought of eating some fully loaded burritos with hot sauce makes me drool.
And the breathing.....first off lemme comment on food again. Dairy is a big culprit to many with asthma and allergies, it clogs up the pathways with mucus. There are other culprits, but this one is by far the largest IMO/IME. Breathing....there's lots of people talking and writing about the benefits and the techniques to do deep breathing. This could be of some benefit to you to research.