Hi,
I work in a software company and my job requires me to sit a lot and my posture is very bad which i am trying to improve,however i make sure i do lot of physical activity like aerobics etc,however i have stopped from 2 months. I am 172cm tall and my weight is 68kg. I used to go to gym before and just went for a month.Suddenly I started  feeling  stiffness and uneasiness/tiredness in my back  almost 1 and half months back and it still continues.Due to this i have stopped all my exercises and now days i just walk,that also slow walk. I dont know whether this feeling of stiffness is same thing what we call back pain?
I love to go to aerobics and gym. But because of this i have to stop everything.
Sir is this stiffness which i feel same as back pain? And is it curable and if yes how much time does it takes? Can i go out for exercise in normal way or i have to take precaution for life long thing. I m very worried about my back as if i have back issues in this age ,then i dont know how my life will go. 
Also 1 more point sir, This pain or stiffness increases as the day goes by, i mean in morning when i get up,i dont have any pain or stiffness,but as day goes by and i work ,it increases .
Should i go for MRI scan? and also can i do gym and is it possible that this pain is because of gym exercises.
                                                        
                                                     
                                                    
                                                        
                                                            
                                                            
                                                            
                                                                posted on
                                                            
                                                                Fri, 14 Mar 2014 
                                                            
                                                            
                                                            
                                                            
                                                                
                                                                    
                                                                    
                                                                    Tue, 13 May 2014
                                                                    
                                                                    
  Answered on 
                                                                 
                                                                
                                                                    
                                                                    
                                                                    Wed, 14 May 2014
                                                                    
                                                                    
  Last reviewed on