So sorry to hear that emmy. But when u said u were only having a couple of shakes a day, praps ur not eating enuf? sometimes if u haven't had enuf food ur body goes into starvation mode and shuts down. so try to have all ur packs this week, and no tea with milk, just 2 - 3 ltrs water and i would think u will have a great whoosh next week, don't give up as i know ur gutted about it. also praps its like shoebe said, if its a diff scale and u were wearing heavier clothes? as jeans can add 2-3 lb alone!!! also can u get a new scale? i bought a Weight Watchers one, it wasn't too expensive, about 10 to 12 pounds, then u can weigh naked after u have been to the toilet in the morning as i do lol.