Problem concerning my falling of hairs.!!!!!?

well i had normal hairs till a year back when i stared having dandruffs resulting in falling of my hairs...after using some homeopathic and herbal shampoos my dandruffs are under control now but my hairs are continuing to fall at a much greater speed....now am so freaked out that i think i may go even bald....is it normal with everybody and will go after sometime or i should really be concerned....i am a boy and just 18 now.......PLEEZ HELP.!!!!!!!