Welcome to Healthcare Magic,
From your description is very suggestive for
low back pain with sciatica ( your pain radiate down to legs , this is neuralgia specific for sciatica ). Mostly caused by
nerve root compression due to
intervertebral disc pathology. In sever cases may appear stabbing, burning pain, limitation in movements, sensory and motor deficits ( numbness, weakness), etc.. Very easy to determine by MRI or CT scan plus Nerve conduction studies (that will show you exactly affected level). You may continue
diclofenac with antacids or in persistent pain try analgesics such
acetaminophen with codeine, or
hydrocodone, plus local anti-inflammatory creams ( voltaren, icy hot, deep heat, finalgon , etc. ) plus hot packs, gentle massage. Additionally once or twice a year
physical therapy. Total , strict bed rest is advisable only for 2 days ,because prolonged immobilization may worsen pain and extend recovery time, you have to start your daily activities as soon as possible and avoid lifting heavy weights, rapid movements in torso, bending, etc.. carry lumbar belt.
I wish you good luck and speedy recovery,
Hope this helps and I have answered your query. If you have additional queries don’t hesitate to ask.
Best Regards,
Dr.Mihail