Sore Arms

I worked my arms out really hard yesterday,this morning and most of the day they were sore but not too bad so I thought I was doing OK! Until this evening, they went from being sore to being PAIN! OUCH! Tomorrow is a running day, which I will do, my legs are not sore at all, I was going to do some weights again after running, but now I am not so sure! I am going to wait until I get to the gym tomorrow and see how the arms are feeling then before I make that decision!