Or is there a nice easy answer like I eat too much?
It came up on another thread & I try to avoid the GP where possible - apparently I'm depressed, I get a headache & I'm depressed, I have an infected toe & I'm depressed, I have a chest infection & I'm depressed - so I have a feeling I know what my thick waist will be 
Seriously tho' is it likely to be water retention or something I can self medicate?