Having been going through terrible back problems since July. I can tell you through experience back pain is the worse. You can't walk effectively, let alone run. You are constantly without energy because of enduring the pain. Most days you want to just stay in bed. Treatments every two weeks that doesn't improve anything major issues, just small tweats.
That said, I admire Gronk every time he gets on the field, takes a hit, blocks a lineman or LBer, and can even run down the field and still stretch out to catch a pass. He is the man. We should be thankful for everything he give us today, tomorrow and the day after that. Age combined with injuries is a slow painful life yet he continues. For his sake I hope he retires before he gets more injured.
Go Gronk
Go Pats