hi, i woke up two days ago with a sore, tender, lower stomach. it hurt more waking up the second day. its really sore and i can feel it when i sit, and when i walk (when i walk, it feels like my stomach is really heavy), and it hurts EXTREMELY when i sit up from lying down. its kind of like constant cramps, mainly on my left side i think. i am 16 years of age by the way. i dont have any money.. i really need answers though, i am worried....