daisylou, both spasms from hypercalcemia and spasms from nerve root compression would usually occur on one side.
The PT makes a sensible statement about the pain being caused by a compressed nerve. Your compressed nerve sounds like the sciatic nerve, whereas zygotes sound like the obturator nerve. Is it muscle or joint entrapping the nerve.
In both cases it could be either.
Tymlos is really the (second) best medication for osteoporosis, but it can cause hypercalcemia. And when it causes hypercalcemia it isn't a very efficient medication. Sometime just lowering intake of D3 or Calcium or lowering the dose of Tymlos restores normal calcium. If the sciatic nerve is pinched in the spine (or the obturator is pinched in the hip) there are all sort of minimally invasive procedures or surgeries and physical therapy that can relieve the pain.
You are thinking clearly and may figure this without testing.
I find it wise to test calcium levels with Tymlos and Forteo even without effects. A lumbar MRI can give you clues about canal and facet stenosis or patency.