Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. In such case when only Diclofenac is not good enough to control pain, then i would like to add muscle relaxant like orphenadrine or Tizanidine and some drugs for neuropathic pain like Pregabalin , Gabapentin etc. but as these are prescribed drugs, so you need to talk to your doctor about this. also you need to keep walking and do some exercise daily so that your muscle are good and they don t get week. I would strongly inhibit you from bed rest. exercise will help you a lot. but if these medications also doesn t work properly, then your neurosurgeon might consider surgery for you. as far as your nausea is concerned, so I think it is due to your this Diclofenac drug. Hope I have answered your query. Let me know if I can assist you further.