I did much the same about 6 months ago, with an extra bounce on two as I was carrying stuff in both hands and couldn't caths a banister.

I had a bruise about a handspan and a half's width across my bum for about 3 / 4 weeks and it hurt. (I'd also twisted my knee so was walking oddly that put extra pressure on my hips too)

If you've not got obvious huge bruises go get it checked out as tou might have done something a bit more serious.

hope you feel better soon.
Terri