I don't need to prove myself, but i can't sit at home earning SSP which i believe is £88 a week.
That is what I wanted back in 1996 when put on the sick by the doc, was hoping a few weeks and back to work. Sick pay is sh*tty.
Other muscles than your back ones get overused thats why the pain in the leg.
This can also indicate a trapped nerve. Then sometimes pain can also be transferred to different parts of the body, either further away from the injury or back along the nerve path.
Diazepam is Valium, a drug much used in anxiety disorders, alcohol withdrawal and as a muscle relaxant. As with liquid morphine both are addictive and should be taken carefully. That the doc is offering you this combination indicates that the problem probably isn't going to just go away quickly.