When i chew theres this clicking sound coming from somewhere in my head i dont know where but should i be worried?
it's your jaw many people have this problem, in fact my girlfriend gets it really badly.. you can hear it from across the room sometimes! a good way to check if it's your jaw, is place your hand on your face so that your fingertips are just touching your ear. when you open your mouth, you should feel a bone moving. as you chew, you are likely to feel it "jump" if you suspect there is a problem but, unless is causing you severe pain, as mentioned, its nothing to worry about!
It's your jaw, and it's actually quite common - don't worry about it unless it starts causing you pain.
the sound is probably your jaw