Do you have lumbar disc herniation? Symptoms generally include low back pain, numbness and coldness in both lower limbs. Therefore, when these symptoms appear, you should get a timely checkup at the hospital. First of all, try to change the lifestyle. Say bye to the nice shoes with heels. In daily life, you better sleep on a hard bed rather than a soft one. Sleeping on a hard bed can reduce the pressure on the intervertebral disc. Have you ever had an MRI of the spine recently? I suggest you go to make an appointment first.