Appears to me this, Medical Marijuana efficacy depends on person to person.
From the very reliable sourse, I heard that the nurse, in her late '50s working in the large hospital whose work is on her feet almost all day long, 8-hours stretch per day. After she got Medical Marijuana with rx'ed pain med., she got almost 'pain-free' without any negative side effects.
So, reading your post, just wondering whether I need to put myself in Medical Marijuana with Gabapentin(#1 nerve pain med, as far as I know), not now but in future, .... probably 5 years later, since both Tramadol and Gabapentin is minimum dosage, two 50 mg. Tramadols and 400 mg. Gabapentin.