Hi .. Ive had back pain for a number of years.. But more so the last 2yrs Ive had chiropractic , accupuntre , and phisio !! I take diclofenac and paracetamol .. For the last 4 weeks Ive had lower back pain again I had a fall and then a week later I missed my footing and jarred my back Im ok to get around but 3 times I went to drive the car its pulled my back causing me to have pain , weakness in my legs and it affects my neck ! Im booked in for phisio tomorrow !!
Long duration of backache aggravated by injury with weakness in limb, and you have tried many things. Still you are not having relief. You should go see a spine specialist or at least an orthopedic surgeon. They might give you medication, rest /exercise, and most important THE DIAGNOSIS. Further definitive treatment is only possible if there is confirmed diagnosis till then supportive treatment is the answer.