Why is it that I can wake up perfectly happy and feeling trim, energetic and happy on some days and on others feel like hippopotamus. It doesn’t matter if I have eaten lots, or not or whether I am slimming  or not. Some days are fine, other days are fat days which I waddle through feeling as heavy and ugly as a old tyre.

People who know me must be bewildered because on happy bouncy thin days I am so friendly and cheerful while on fat days I sludge around keeping my head down and saying as little as possible because I feel so lumpy. The thing is, they don’t know I’m having a fat day so they must feel I’m a moody cow which makes me feel even worse.

I am a bit of a yo-yo dieter and while not fat, am not skinny either and tend to go between ok and slightly overweight, but nothing like the great obese mass that I feel in my head.

The thing is, that other women also have fat days so what causes them and is there a cure? Apart from chocolate that is.