Age, weight, health, activities, history, ect.. All come into play. The vast majority of back pain is the result of strained/sprained/tweaked muscles. Depending on the severity at the time, dictates coarse of treatment.anti-inflammatory medication, like Ibuprofen, can help. If you can walk, then walking while you are still having an issue can help. Look at your lifestyle, if it is not active enough this can lead to long term back issues. Weight can also screw you up. Reoccurring like this, especially when sitting, does lean towards spending too much time on ones ***.