Do I have Hypoglycemia?

[smiley876]

Hi,
I'm a 14 year old girl, otherwise healthy.

Ever since about mid last year, i started 'almost passing out' after being in the heat for too long, or after having to stand for a long time, and have also been faced with feeling very disorientated, shaky and dizzy in the morning. We had been to the doctors several times about the 'almost passing out' issue, and they told me to 'put it to bed' and refused to do further testing after an ECG and a bloodtest, which both came back as normal. They all said that this was due to a lack of exercise (i suffer from extremely cold hands and feet) and sleep, even though i find it very hard getting to sleep at an average time (too early, and i wake up in the middle of night)..they also said that it was all in my head!
I am often faced with random waves of nausea, and lightheadedness/dizzyness when i go without eating for a while, and start shaking slightly, feeling very sweaty and 'out of it' too. My mum has since refused to take me back, as she believes that the doctors are right, but after doing all the research i've done, id really want to come to a conclusion, as this is extremely embarrassing when you're almost fainting for no reason, and are feeling and looking very, very giddy all the time.

Any advice on what you may think this could be?

Thanks so much, all answers are appreciated!:)

I also suffer from afternoon headaches, and feel sleepy after eating. I also get really bed headaches after eating lots of sugar

[remar]

It sounds like possible hypoglycemia to me but I'm not a Dr. I go through the same thing if I don't eat. I have checked my blood sugar when I've went without eating and my numbers are pretty low. Not long after I eat something I feel better and my number comes up.
It might be best if you have several small meals a day to keep your blood sugar where it should be. Three meals a day may not be enough to keep your levels normal. I'm not saying you need several great big meals, just healthy snacks in between meals.
If this does'nt help your mom really needs to get you back to the Dr for more testing.  

[smiley876]

Thanks. Nice to know that someone doesn't think that this is all in my head!
I do feel much better after eating something, especially in the morning, when these episodes tend to happen most. I've done so much research on the topic, and really do believe that I have it, after matching up my symptoms very carefully. The so called 'episodes' only happen if I haven't eaten a large meal the night before, or if the meal i'd eaten previously wasn't high in anything important.

[remar]

It does sound like you might be hypoglycemic.Did your Drs check your blood sugar? Did they test your B vitamin levels? You really need these tests. Something is going on and I don't think it's in your head.
How do you feel after eating something?