I discovered my mom in a diabetic coma yesterday

I woke up to a weird noise (it was her tongue in the back of her through) and discovered my mom in a diabetic coma yesterday. I’m having a hard time. EMTs were able to get her conscious again and she fully came to in the hospital. She was diagnosed with hypothermia too.

I guess I’m wondering how bad that is? Obviously I know it’s bad, but did my mom almost die? I’m not looking for medical advice per se, more I guess anecdotal? Have other people gone through this? And I making a big deal out of something relatively common?