My lower back has been tight and in pain for the last 3 days. It is hard to walk. I have extreme pain when I stand up, sit back down, and bend over. I didn't pop or happen all of a sudden. I cam on gradually while surfing and playing volleyball over the weekend. Is it a pulled muscle or a bigger problem?

Optional Information:
Male , Age: 26

Already Tried:
ice, rest, ibprofen