Thin, weak bones and headaches

All the sudden my hair has been getting thinner and kind of falling out and my bones seem so week and I am ALWAYS tried, and ...

the doc. said my bone become fragile?

what happens to your bones when they grow??

How do you stop the annoying popping sounds that happen in random joints of your body?

I have to draw this monster character wearing a "bone breastplate"??? What does a bone breastplate look like?? Pictures/links?

I was visiting an orthodontist today, and she showed me that in the x-rays, my jaw bones aren't normal. They are not shaped n...

I've been having headaches when I have my period..is't ok?

a lot of the time I work out I get headaches, could this be because not enought water?

Can you get a headache from not enough sleep? Or not eating enough?

Why do I feel weak almost all the time?