I went for a scan too but the sonographer couldn't find anything, she said that it's not unusual though and the GP confirmed that 2 out of 3, (bloods, symptoms and scan) was enough for a diagnosis. My skin has always been horrendous and I can put on weight while on a diet! Do you stick to low GI foods?? Apart from the weight obviously, all my symptoms cleared up during pregnancy, my skin was much better and hair not greasy at all. Leaves so many questions about hormonal contraception now.