Question about bone pain. HELP?

Im a female teenager.
I've been having some bone pains recently and am quite worried.
Here are my symptoms:

* The pain started out very mild and not very often and in only one place.

* I now get the pain several times today in a few different places

* I get bone pain in my femur/knees/ shin bone

* I get these pains in my left femur/buttox/ knee (same place everyday.
Right femur and shin bone (same place everyday)

* It feels like a throbbing in my bone

* The pain is always worse at night

* The pain comes on suddenly (right now it is throbbing in my left knee bone)

* I get tired easily

* i was 61 kg and now I am 59 without doing anything

* This pain has been going on for a month or so and its starting to really hurt and its becoming more frequent.

Im worried about osteosarcoma/ arthritis/ myeloma / bone diseases.
I know I have to see a doctor, which hopefully my mum will book me into soon.does anyone know what this could be? Should i be worried?
!!

Seems very severe.. Please do me a favor and go to the doctor before things get worse.

consult a doctor...

I'm sorry you feel so bad.
Yes, you should see a doctor as soon as possible.
It could be any of the above - the first thing that came to my mind was Juvenile Rheumatoid Arthritis.
But it also could be any number of things, including good old growing pains.
Go see your doctor and see what's up.
Good luck.

You possibly could have JRA (junior rheumatoid arthritis) or any other injuries but you need to go to the doctor first and get an x-ray, bone scan, and catscan. If those things don't work your body could be in a state of depression, ex: I felt like my left leg was broken and I saw 11 different doctors before I was sent to a pain clinic and figured out I was depressed. Since I started taking antidepressants I haven't felt the pain since.