hello, really long time no see, have you try any massage to relief your low back pain? does it works? if it works, your spinal column is fine but just too tired, you could have some yoga or belly dance so as to increase blood circulation in order to relief stressed muscle (拉鬆已受壓或緊繃的脊椎神經和肌肉)
If not the kind of pain I said, and due to you are not acute injury, no need to consult orthopedist. I sugguest you consult some physiotherapist first, see any physiotherapy need to apply. (Telford Plaza phase II , there is a female physiotherapist Ms. Doo)The worst status, the physiotherapist will recommend an orthopedist to you.