Slid down 2-3 stairs stayed on feet. outside rt foot hurts when i move my foot but no swelling haven't been on feet yet. break possible or sprain?

Yes: 5th metatarsal fractures esp. @ the base of the bone are common.Even if you are able to put some weight on your foot you should get an x-ray .A sprain of the peroneal tendons is possible but an examination and x-rays by your ors ( orthopedic surgeon) is best. Good luck!

Either: I would have it examined by a podiatrist to make sure no fracture.