Hi there Robram4
I see no one has replied to your question about the TENS Unit.. It is a little machine which Physiotherapists can give you to help ease the pain.. it is held against the skin on the area which is painful and sends little "currents" deep into the pain..
I don't know exactly how it works; but I'm sure you must have received some type of relief by now, as it's been a while since you posted your message?.. Hope this might help someone anyway..
ask Dr about a TENS machine .. or physio.. Good luck.. belle