Grinding noise after high engine revving

I was revving my engine too high I guess and a short while later it started making a clanking or grinding noise that sounded to be under my gear shifter or a little more farther up. It does it in gear but only really noticeable when it is just put into a gear or high in it. You can faintly hear it when it is out of gear but it is noticeable if you start to rev it a little bit. So what is your opinion? Thanks