Help...I'm not sure what's wrong, I got up the other day to get ready for work and my work trousers were suddenly too small, I couldn't get them fastened. My stomach is bloated, I've been feeling really tired for the past week and a half and have got sore breasts. I have also been getting sore heads. I am on the pill and not had a period for around 10 months now but I still get the pains like am having a period. Am so confused how my trousers fit me one day and not the next????