I contracted a spinal infection and 3 operations later I have been left with a damaged spine?

Hi

I recently had a small back operation to treat a prolapsed disc. During the operation I contracted a spinal infection and 3 operations later I have been left with a damaged spine at the L4/5 level.

The pain in my spine is chronic and I also suffer from severe referred pain.

As a result I have been prescribed a range of pain killers including 80mg of Oxycodone daily, 300mg of Pregabalin daily, 40mg of Paroxetine daily and 20mg of Oxynorm as required.

My questions are: ‘Would this be considered an appropriate level of pain medication for my condition and what long-term side effects should I expect?