I have been experiencing lower back pain that's going around to my waist. Any idea what could be causing this?
There are alot of things that can cause this. You could have strained a muscle or tendon in that area, you could have an irritated nerve from wear and tear to your discs or through an injury. A fractured lumbar or sacrum bone can cause pain to radiate around the waist (this often happens in elderly people). There's also the possibility of arthritis or kidney problems or others.
You'll have to see your doctor to figure this out.
Here are some links to articles that might be helpful:
What Can You Do About Nerve Pain?
Why Yoga Can Help Soothe Many Types of Chronic Pain
Disc Herniation: An Introduction