Hiya Nina
I'm so sorry you have had to find us but welcome and this is a great group to belong to. There is a wealth of knowledge here from adults with type 1, 2 etc and parents as well.
My daughter is 11 years old, hormone city, and she has been type 1 for those 11 years. We never had the greiving process as it was pretty much from birth.
However I know 100's, unfortunately, of children with type 1. There is an email group you can join which is a support group for parents. We have our own website which has already been mentioned but I'll say it again anyway
www.childrenwithdiabetesuk.org
You can join the email group from that website. Its quite quiet at the moment as its Christmas and there have been two knew parents join this week already. Take a look.
I use both here and there and both have their places in my life and I love both.
I think you need to give your nurse / consultant a ring in the morning. You need to ask about how much insulin (novorapid) to give to bring down high levels. As it is Christmas I have a feeling you are going to see some higher levels.
Do you have a ketone blood monitor? If not, ask your DSN for one, they should give you one.
The anger, yep all part and parcel. Is he having swings in his blood sugars, up and down, that could all contribute to the anger and moods.
Also he is going through a mourning process, this will have thrown him and he needs to get his head around it which is damned hard for a 10 year old.
You will no doubt be going through your own grieving process. This is totally normal and you will be in your diabetes bubble a long while yet and that is just fine and is a good thing whilst you learn and gather knowledge to help your son and yourselves readjust.
Where abouts are you in the country. If you don't want to put that, please feel free to private message me or email me. I may know people near you so that you can touch base with other families. It is so important not to feel isolated and this is a lonely condition. My greatest friends now are those who have children with diabetes. We understand one another and get how hard it is sometimes. We have all found that over time, our kids with diabetes would rather be with other children who have diabetes as well. This isn't a bad thing either as they have this huge responsibility on their shoulders and can look after each other and just know what the other is feeling to a certain extent, plus it makes them feel normal.
Anyway take care.