Lower Backpain. Will result in future.

I never had back pain before it started b4 3 months with little ants like feeling in lower back (that time I had did physical work than normali used to Go up and down in multiparity chemical plant without lift due to work Requirement).. when it started for 3-4 days I thought to visit doc but gradually it decreased to beatable pain... from then onwards I face back pain Everytime after coming f rom office (I do most of the work on laptop in ofc, it it sitting job) also I feel ltl pain throughout day and also when I woke up in morning)... I haven't visited any doc yet... i do suryanamaskar as execersie... what should I do to get rid of that pain and why it is the and what it will result in future...