1. Your back pain is due to chronic bad posture
2. It increases as the day progresses because you do activities which are bad for your back.
3. Your MRI is not bad and anyways we are treating you not MRI so your symptoms matter more and it has to be correlated with MRI
4. Knee pain is not due to your back pain it is a separate issue which needs to be tackled separately.
The further steps for complete recovery are complex and need to follow a particular set of advice which is not possible to elaborate here.
Next Steps
Get in touch with me and book a consult to get better advice and treatment. Thank you
Health Tips
https://www.practo.com/jaipur/doctor/dr-sachin-jain-orthopedist