What causes this problem?
The symptoms of sciatica come from irritation of the sciatic nerve. Many doctors think that the condition begins when the piriformis muscle goes into spasm and tightens against the sciatic nerve, squeezing the nerve against the bone of the pelvis.
What does the condition feel like?
Piriformis syndrome commonly causes pain that radiates down the back of the leg. The pain may be felt only on one side, though it is sometimes felt on both sides. The pain can radiate down the leg all the way to the foot and may be confused for a herniated disc in the lumbar spine. Changes in sensation and weakness in the leg or foot are rare. Some people say they feel a sensation of vague tingling down the leg.
Know your body and know your limits. Unfortunately I'm going through this right now and it's not something people want to experience :(. Make sure you don't rush rest. You want to be 100% pain free/ recovered before resuming your usual exercise program. Wish me fast healing!