Why does it hurt when you are on hard?

What are the effects of ignoring gonorrhea symptoms? I am five weeks pregnant with my fourth baby and already feel like my tummy is expanding. Could I really be getting bigger already? Methods of transmission of tuberculosis? What is tissue respiration? What happens in the heart during Systole? What is the organ in which water is removed until the waste is solid? What do you do when an ear piercing is infected? Why are nerve cells compared to the house wiring? Anita has recently been diagnosed with type 2 diabetes. Which kind of diet is best for her? What muscle types are involuntarily controlled? Are oxes blind? Why organisms does not need lungs or gills to obtain the oxygen? How do you tell if you have split ends? Why does your rotten tooth hurt? What is blype? What birth defect is characterized by the inability to process and use fats? Why would your heart stop beating during a colonoscopy? What is a recommended dosage of vitamin b12? What part of the body that contain impermeable membrane? What are reasons for someone's cheek to hurt?