Ok, weight loss, ketones, very high bg at diagnosis, relatively young and active...I have to say that it does not sound like Type 2. It sounds like Type 1 or LADA which is a kind of adult onset Type 1. This can be confirmed with a c-peptide and a GAD antibody test. I would strongly urge you to see a doctor (if at all possible an endocrinologist) to get the bottom of this. Here is some more information about LADA:
Diabetes Monitor - LADA (latent autoimmune diabetes in adults) IOH latent autoimmune diabetes (lada) diagnosis chart
In answer to your question, is your life in danger. Probably not immediately but if you are truly a Type 1 (as it sounds) it will eventually be an immediate danger. The longer a Type 1 goes without starting insulin, the faster the beta cells (insulin-producting cells) are destroyed. Once that happens, ketones are a more immediate danger. That is not to say that they are not dangerous now - they could be. That is for a doctor to find out. I wish you luck and hope you feel better soon.
