HI! Nice to meet you! I just joined this forum too. I too had my symptoms show up when I was around 10. So to me it is normal too and same as you I am really thin as well and eat all the time and nobody could understand it. It is so hard to gain weight. I have been tested but have not had a gtt which I think shows exactly when you should eat..what times. The doctor just caught my low blood sugar while testing me for something else when I was about 18 or 19 but told me to just carry sugar around with me so that didn't help things at all. hhaha and I knew that that was a screwed up approach to fixing a problem so I just disregarded it.
But am just just now looking into it and there are ways to fix it. I myself have it under control when I'm not pregnant as long as I eat almost exactly 2 hours apart.. but can not go over 2 hours. and it is vital in the morning times to be extreamly strict about that. Of course you can only eat certain things as well I am sure you know. I am going to be recieving some pills formulated for hypoglycemics in a couple days here from the health food store. I will post it up on this forum when I see what it is. It was ordered for me so I'm not sure the name.
Anyway you can feel great and have lots of energy and all that stuff. It is pretty much completely up to what you eat and when you eat it! Once you find that balance..your awesome.
Read 'Stans final version' diet. He has a lot of great info in that post!
I'v never met anyone who has had it as long as me.
Before I get my period I usually feel more sensitive too but not a big difference and if I eat right up until and during, then it goes well, no problems.
What other problems do you still have and at what times?
What do you eat for breakfast mid morning and lunch time?