Lots of diabetes questions?!!?

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Well, I'm Diabetic I was dianosed August 28, 2007. ( I'm 13 )

I'm on the pens. Just where you add the needles on the end and take them off when your done.

Anyways, These are my questions/concerns:

-I'm scared that when I go to the hospital on March 4, 2008, that when they test my blood ( it tells them an about range of what I have been lately ) that it will tell them lately that I have been really high. Last time it was like that they kinda freaked out but, didn't even tell me how to fix it! But, this time I know its going to be higher because I have been really sick lately like with the flu and feeling like I'm going to throw up! So, Will someone help me on trying to keep my blood sugar tests in rande for the next 2 days?!

-Sometimes I feel low, so I go and test my blood sugars but I'm high. It has been like that for a couple days now. Has anyone else experiniced this?

-What happens if I miss a dose of insulen? What do I do?
-Sometimes I'm not even hungury and its eating time!? Does anyone else not feel hungury when you have to eat? What do you do? What should I do?

I thank everyone for reading this I know it is very long but I'm really worried! And I know there is alot of questions to answer. But, I thank you for taking this time to help someone.

Thank you, in advace!