I am experiencing some troubling symptoms and am unsure if I should call my doctor. For the past week or so, I have had a headache ranging from mild to severe (unable to concentrate because of pain). Along with the headache, I am dizzy, disoriented, confused, and feel really heavy. I've also been extremely bloated and nauseous. I have also has lower back and joint pain ranging from sharp to a dull ache. Last night, I had a sharp pain in my lower right stomach that worsened when I moved, but was able to sleep just fine. This morning, I had diarrhea, completely liquid. The symptoms seemed to start directly after I increased my water intake. I have no history of migraines. Am am a 17 year old female.