Pain severity can range from mild to severe, and may extend from the hips to thighs, calves, feet, and ankles. Some patients also experience numbness or weakness. Some might experience pain radiating down their legs after walking long distances, causing them to stop (claudication). Symptoms tend to worsen when weight is applied to the spine, such as during sitting or walking, and improve with bed rest. It is also essential to watch out for "red flag" symptoms like fever, loss of appetite, weight loss, or nocturnal pain (pain that awakens you from sleep).