You seem to have undergone a lot. The pain you are suffering from at present can be related to ovary or ureter
. It can even be related to spine with possible sciatica
. Degeneration of intervertebral discs or any possible injury
to spine because of your car accident may also lead to the pain in left leg. You need an ultra sonogram of abdomen as well as an orthopedic check up. Take care and wish you the best.