Hi i have severe pains down my left leg/ groin area/going to the knee in recent days my leg gives way and goes under me sometimes the pain is shootin?

Herniated disc: The spinal cord (back bone) is made up of a column of bones (vertebrae) stacked on top of one another. Between the vertebrae there are discs that serve as shock absorbers. Herniation of a disc can cause pressure on nerves and cause symptoms such as those you describe. Your symptoms are consistent with problems in the lumbar spine. Herniated disc is usually diagnosed with MRI.