Back pain that is mechanical (injury or strain) gets worse with movement and lifting. Back pain from arthritis is inflammation and usually relieved with light exercise and anti-inflammatories

It’s still a matter of debate. Studies from several researchers have shown mixed results, the correlation between back pain and high blood pressure is not fully understood yet.

A minor muscle strain may go away on its own with rest. Back pain that does not go away or that causes decreased mobility is a sign of a more serious condition or injury.

The most common reason is because you’re not padding between your knees if you’re a side sleeper. A more rare but serious reason back pain can wake you up at night is from an inflammatory condition.

Improper lifting & bending, poor posture, and inflammation are the most common causes.