Suggest Remedy For Severe Back Pain And Headaches

hello my name is alizabeth my boyfriend has very bad back pain and headaches i really dont no what to do for him. i no he is over wieght but gosh this cant have something to do with it can it? i really hope you can help me i am really scared for him! please help also can you please tell me how to relieve dizzyness he is going through that to. thank you for all of your help