Can someone help me find out what these symptoms mean?!

Can someone help me find out what these symptoms mean?

ok well lately, my hair has been coming out a lot lately. i've been doing everything possible to keep it healthy (brushing it, keeping it down while sleeping, using a good conditioner, etc), but whenever i run my fingers through it a TON comes out. and in the shower practically a handful comes out. on top of that, if i've been sitting or lying down for more than like 2 minutes, then i stand up, I get extremely dizzy. Everything starts to get black and I feel like I'm going to pass out.

Does anyone know what these symptoms could mean?
And by the way, I'm 15 so I'm not going naturally bald or anything. And I'm not anorexic. I am on a strict diet but I still eat. Also, I've had long, healthy hair for years (I'm a girl.)

2 days ago
i'm am not on birtch control, and i'm deffinetly not pregnant.

Well, IF these two symptoms are related, then there are three pretty common conditions that may cause those symptoms.
1. Addison's disease (hormonal disorder characterized by insufficient production of certain hormones called adrenal corticosteroids),
2. Anorexia Nervosa
3. Lupus (an autoimmune disease affecting mostly women and causing various effects throughout different parts of the body)

Obviously, these symptoms bother you, since you're asking. To be safe you really need to see a doctor. Preferably soon.

However, don't automatically assume you have one of the above three things. Without further information, my guess is, your strict diet is leaving you malnourished. That's the most likely cause for those two symptoms that's not a disease or otherwise beyond of your control.

Strict low-fat diets, or diets that remove a food group entirely (vegan, vegetarian, Atkins diet) can have adverse health effects. Initially, these effects will show up in ways like the symptoms you describe. Assuming there is no disease present, hair loss is one of the biggest red flags that you're not getting a nutrient your body requires. Thus, your new hair is weaker, and more prone to breakage, which you notice as it falling out. This can also be caused by stress or an allergy/overuse of shampoos or certain hair-care products.

The dizziness is most likely due to your blood sugar level, but it could also be due to low blood pressure or, again, stress. Again, assuming no disease is present, this symptom is easily caused by your diet.

Both can also be caused by prescription, homeopathic or illegal drug use, as well as many herbal/nutritional supplements.

My advice, keep a "food journal" for a week that tracks what you're eating and drinking, include the calories, sugars, carbs, fat grams and dietary fiber amounts. If you're not taking a daily multivitamin. Start taking one. and see if the dizziness stops.Even if it does, to be on the safe side, you really need to see a doctor, and be sure to take your food journal with you. Your doctor can determine if you're getting adequate nutrition out of your diet, and if not, what you can do to fix it. If your diet ends up being OK, s/he can investigate further to determine the cause of your symptoms. Don't put this off just because the conditions I listed aren't "major". There's always the possibility the hair loss and dizziness could be unrelated, or caused by two different conditions. There are many causes for each of those symptoms, and some can be very serious and time-critical. So, see your doctor, ok?

One temporary solution for the hair. Ask 10 people and they'll all disagree, but, brushing leads to breakage - especially repeated, daily brushing. It's good for distributing scalp oils along the hair shaft, but it also stresses the hair. If you limit the brushing, you will have less breakage, and that may help.

Also, don't buy into the idea of "healthy" hair. Visible hair is 100% permanently and completely dead. Products that claim to make hair healthy are using that term as a sales gimmick. The only thing hair products can do is coat the hair with chemicals to make it shiny, fuller, less-prone to breaking and thus slowing its eventual breaking and decomposition. Just like fingernails, hair is no more capable of being alive (or healthy) than a big block of wax.