2 years? then likely not temporary sciatica.
This is still likely Sciatica but now from a different cause - lumbar disc strain. You should have a MRI of your lower spine to clarify this.
If it is sciatica (and it likely is), the following will help:
- weight loss
--> Try these: http://www.spineuniverse.com/conditions/sciatica/exercises-sciatica-spondylolisthesis
Also, because this a nerve pain, regular pain meds like ibuprofen or naproxen don't always help chronically. Instead, one needs neuropathic meds such as:
Of course, one should be evaluated for other process as well which mimick this including:
- ANA for auto-immune diseases
- Vitamin B12/folate/thiamine/iron deficiencies
Does this help?