How To Treat Bulging Disc In Spine?

hi my name is kailash, i want to ask that is physical pain related to mental cause like i have a bulging disc(L4-5) in spine because of which i can not sit at one place continuosly for more than 30 minutes or so i have tried a treatment but no result now i am taking psychitrist medicenes for my pain he says my pain is psychological but i dont think its bcause of psycology since from last 2 years i have this problem n i have tried lots of treatment with specialist in this field but no improvment on the other hand my pain is worsening i dont know whta to do now to overcome my condition.please help me i desperately need the solution because my job requires me to sit a lot at the pc for programming.