<s>[INST] Hi. My name is Kady I am 19 years old and have been having pain in my upper to mid back. Im active, I play basketball for a college and my job is delivering pizzas so I drive a lot. I dont know what is causing my back to ache. It is not the usual pain after a work out. I havent fallen down or lifted anything heavy. [/INST] Lady, playing basketball and doing a lot of Chat Doctor.  These gradually causes back muscle fatigue. I would suggest you to start Muscle relaxant like Moral or MySpace. Also, you should take warm water shower. You should also learn back muscle strengthening exercises from physiotherapist. It will give power to your muscles, so you would not have such pain in the future. Till than you avoid pizza delivery by bike. </s>