For the past 6 days I've had a stomach ache I think it's the stomache flu but I'm not sure but I've also have really bad headaches why is this

Common symptoms. Unfortunately, these are common symptoms that something is wrong. Flu/virus infections often show upike this. It's a difficult call when to get expensive help, especially when there is no treatment for 99% of viral infections? Your body will fight-most of these with time. If you have other medical problems, a doctor's help may avoid serious problems. If you're scared, you probably need help.