I think I got injured at the group training class, even though I felt really great during the workout, my arms worked harder than usual on this day. I think this happened because I spent a lot of time punching the bag and doing mitt work before joining the group training. I was still in pain the next day. Also, the pain didn’t get any better after a couple of days, so I went to see a doctor to see what’s up. I had a blood test and found out that my CPK level is 20 times higher than normal. So now, I might need to change my usual exercise routine until I recover. Since it’s not a full-body injury, there is something I can do to stay active. Maybe, I’ll try to do some cardio on the side for a while.