achy all over

my body hurts and I can't stand it. Last month I had rib pain where my bra band stopped (under breast, where my sternum ends) my friend said it sounded like cramping and it'll go away. Well it hasn't, it hurts still and now today the middle of my sternum hurts when I press on it and even when I don't touch it. I get sharp pains (it even hurts when I lift my arm up to brush my hair). I feel like I go to the doctor all the time I'm either sick or I think something's wrong. But when I go my doctor doesn't say much, she just gives me medicine. I've been taking Advil and whatnot but it doesn't seem to help with the pain as much as I would like it to. My mom says it could be heartburn and to go to the doctor Monday. But I was just there last week. Any ideas? Maybe i should find a different doctor.