teenage girl has suddenly vanished from Bathgate sparking a frantic police search to find her.Demi Lee Middleton has been missing for two days after being last seen at 4.30pm on Thursday 25th February.Police are worried about the safety of the 15-year-old schoolgirl who disappeared from the Old Deans Road area after heading towards the town centre.Demi is described as around 5ft 6 inches tall, slight build, with light brown shoulder length hair.