Sorry, im just having a moan!! Rang up hospital on Thursday night as I had a bad pain on my left lower back. Went in to be examined and have only got out today after being diagnosed with a kidney infection/UTI. Codeine made me throw up all day so by last night I was in agony in my back so they gave me an anti-sickness injection and pethidine. OMG!!! Never again am I having pethidine I was so so dizzy falling about everywhere, projectile vomiting and everything! Eugh!