Welcome to the forum.
According to the clinical history provided the back pain could be part of a mechanical back pain
complex of symptoms. This mechanical back pain is caused due to bad posture at work, long work-hours in particular position, lack of proper sleep or healthy diet as well.
I suggest you to try back strengthening exercises by extension of the back muscles which can be taught by your Orthopedician or Physiotherapist. This will help to relieve the possible muscle spasm which causes the pain. One must also rule out inflammatory disorders, for which I recommend you to get a X-ray of your spine after consulting with an Orthopedician. MRI
can be taken in case you have any nerve
compression symptoms or as deemed necessary by your Orthopedician.
I hope this information has been both informative and helpful for you.
You can consult me again directly through my profile http://www.healthcaremagic.com/doctors/dr-saurabh-gupta/64132
Dr Saurabh Gupta.