Hai , u haven’t mentioned ur type of work It may be due to severity of the back is ur back js ok for you if not u need to consult a ortho for the problem and continue to have a physiotherapist treatment point of view for ur pain relief if the pain is not reduced even with medication
Next Steps
Care of the back while sleeping keep a pillow below the knee and sleep
Health Tips
Avoid lifting heavy object and avoid prolonged standing. Try to shift ur weight on leg In between ergonomic is a must while at work