I'm going to the chiro for what appears to be a pinched nerve in my lower back, the pain in sitting and standing have become worse. It's very painful in my hip and leg now to the point where I can't stand at times. I've taken every pain med OTC and nothing helps. Should I see a specialist?

Yes, see an orthopedic doctor. Is it only on 1 side? Possible pinched sciatic nerve. Has the chiro suggested decompression? It is a long term expensive process that is only temporary.