Hello Welcome to the Board Dizzy_92 The welcome board is in The Lizard Lounge but thats okay
What is the species of your chameleon? Is it male or female? How old is it? What is the size of the cage? Do you have a heat lamp on it? Do you have a UVB light fixture aswell? What have you been feeding it? Do you have a plant in the cage? If so, what kind?
Answer all those questions and you will get A LOT of help
This site at the moment is lacking a compiled list of basics. Heika has started one you can find here [THREAD=1053]thread link[/THREAD]. I highly recommend visiting Chameleon News. It is a fantastic website filled with accurate chameleon info; it should get you off to a good start.