I fell down the stairs at home. my right leg from my buttock down is in pain. does not feel like i broke anything but its pretty painful and feels numb. should i go to the doctor to have it checked out? or should i self medicate?

We need more details to answer this question. How did you fall? What did you fall on? Are you able to walk? Where is the leg painful and numb exactly? Do you feel weak? If you feel and have numbness and pain in the leg you should see a doctor, its not possible to say if you need to go to the emergency room without more details

In view of numbness, might consider trauma to a nerve. Injuries of this sort could also cause discogenic damage in the lower back. Although not a critical emergency at this point, suggest contacting your doctor and informing of what has occurred. May be helpful to get this examined, and at a minimum, receive reassurance.