Recently I noticed that after jumping rope and jogging, a pain would occur on the inside of my left shin. It's in the middle and it's about a 4 inch area that gets the pain. Sometimes it's minor, other times like after I went jogging today it was really bad and I had to stop running. I've had shin splints before and this feels nothing like it. Any ideas on what might be causing this, I'm thinking about going to see my doctor about it.