Advice needed please! Twice now, once in the middle of the night and once this afternoon I've developed a sudden pain in my back whick spreads round my side and down into my legs. It was on my right side the first time and then my left the second. Exactly the same feeling but a mirror image. It is so painful that I have to get up and move but nothing seems to help other than firm rubbing from my DH. Both times it has been really bad for about 15mins and then gradually faded after paracetamol and rubbing. Panicked it was a contraction the first time but obviously not as lasts way too long. It's not a sharp pain more like a dull period pain type ache but centred just to one side of my spine just below my bra. Really horrible whilst it lasts and has me worried about how ill cope in labour. Got to practise my breathing but discovered I need lots mire practise. What is it? Anyone else had anything similar? Baby is fine. Wriggling away all evening!