Hi
@AJRimmsey,
Welcome to the forum. As those that posted before me, I would like to give you a hug for all you've gone through. This just shouldn't have happened at all.
Do you usually see higher levels when you felt wozzy and sweaty at 5.6 mmol/l? Then this could be a "false" hypo. In other words, your body has gotten used to these higher levels and considers them now normal. If your blood sugars fall below these levels, it tries to bring these levels up again, leading to the same feelings normal people experience, when there is a real hypo. So, what you've been experiencing is absolutely normal. It will take some time, for your body to get used to lower levels of blood sugars.
There is also some new thinking about diet and heart disease. If you are interested, you might want to google Dr. Assem Malhotra, Dr. Nadir Ali and Dr. Bret Scher, all of whom are cardiologists.
Good luck on your journey. You are off to a great start. Keeping my fingers crossed for you.