... two months ago. With all this my left leg down and under my foot has sciatica. I have started physical therapy for my si fusion and it has aggravated my disc trying to stretch my hip muscles but also has aggravated my right si joint and I now have some sciatica in my right leg. I am having problems with constipation from the medicine I am assuming but am not quite sure if I have cauda equina, can anyone help me with this. Also, the disc problem has been four months now. I did not start therapy for the disc until two weeks ago because of the si fusion surgery. Someone please help me with any of these questions if possible