Pain in right lower back, right buttock, right upper&inner thigh & right foot. essentially feels like nerve pain, have small twist in spine. y this pain?

Pinched nerve in ---: The back, most likely from a herniated disk (s). Get yourself seen by an orthopedist and a MRI would certainly help with confirming the diagnosis.

Sciatica: Sound like you are experiencing nerve pain due to nerve compression. Sometimes, your symptoms might improve over time. If symptoms persist, please see a pain specialist, orthopedic spine doctor or neurosurgeon for evaluation.