I injured my lower back went to chiropator for it . then i got pain from my hip down to my groin. now my hip is numb. whatcould this be?

You need to be seen.: Right away. This is something that you should see a doctor about in person today. There are a few possibilities, and some of them are possible medical urgencies that could become more serious if not addressed in a timely manner. If you don't have a primary MD who you can call for guidance, consider the ER. Urgent care might also be helpful, but the ER is a safer bet, especially given numbness.