If you are not having any pain, I would not worry about it. Simple stretching exercises and yoga could help relieve symptoms. I would talk to my medical doctor about what precisely to do.
A bulging disc can be a serious thing. You use your back for every kind of movement that your body makes. You can get pinched nerves from the protruding discs. You need to keep an eye on this and see your doctor often.
The L 4 disc affects may be sciatica, pain the low back, or possibly asymptomatic. Get checked if you have any loss of sensation or weakness in lower body.
