No worries, I could say more but in the end my experience will probably be much different to yours as is the nature of our beast. Good luck!

The first time I tried I felt incredible (for a week), I also have insomnia and for that first week I felt energy I hadn't felt since my early teens. It was also quite freeing, I have a physical job and drive a lot for work and my bloodsugar was very stable even if the energy didn't last. The main drawback is you have to eat a lot to keep up calories, I ended up stopping after a year because I couldn't keep my weight up. Talk to your specialist team about it if you decide to try but so long as you can stomach eating tonnes of nuts and meat (though you need to be careful with the amount of nuts as one too many and you've got yourself the runs) it's worthwhile I think.

Yes. I'm not educated in the matter but as far as I know insulin is necessary for energy to enter cells so without it carbs, ketones etc just float around in the blood doing harm where they go. This causes both a buildup of energy sources (like ketones that are acidic) in the blood as well as signalling the body that it is not getting energy. When this happens your body continues to break down fat to give you energy, which can't pass into cells without insulin, so it adds to the buildup. This vicious cycle continues until you finally get some insulin or the ketones become too acidic for your body.

I'm diabetic and I've gone high many times in my lifetime but never had ketoacidosis because I've not gone without insulin long enough for ketones to build up, the highs were caused by too much sugar not a lack of insulin. I've also been on a keto diet and had no problems.

Generally it's fine, diabetic ketoacidosis normally happens due to a lack of insulin. Insulin can reduce ketone concentration in the blood/prevent liver from producing too much. In a healthy person ketoacidosis isn't a huge concern (though it is possible)

Nah that's just one of those things people say without really watching. His buildup isn't world class but he's a clever and experienced player and he's very effective outside of 'it'