Im 21 and i am having a seriously bad backache.... plz help....?!

Im 21 and i am having a seriously bad backache.... plz help....?

i had microdisectomy L5S1 last year but never really had a bad ache. since then i even go for walks regularly but no excercise. 10 days back i had to work on my college project so i sat in front of the computer from 11 to 7pm for 2 days. but i did take breaks in between. since then i upper back and back of neck is aching. its gets ok after a while but starts again even if i sit for 10 minutes in front of the computer or work in kitchen like after cutting 3 apples... do u think itz serious... should i see a doctor....... plzzzz help... should i do excercises... howz Mc.kenzie's book 'treat your own back' .... does it help.....thanks...

Sitting in front of a computer for hours on end can cause serious problems for many people. The problem is usually your posture and the way you are sitting. Most people do not sit properly at the desk, and it causes all sorts of issues - and pain. It also helps to have a proper chair with good support, at the proper height, and all of that. Of course, your monitor and keyboard need to be placed properly as well or your neck will get royally screwed up. Just look up some info on ergonomics for tips.