Hi,
Thank you both for your responses.
My OCD is contamination, I don't exercise excessively. I used to play football but I gave that up recently as I didn't want anything contributing to the weight loss. Over the past few months I have had 3 blood tests which have pretty much ruled out most possible things that would explain the weight loss, I have had numerous visits to the dr's and a dietician, who have all scratched their heads as to why I have been losing the weight. Over Christmas I went to Spain for 10 days with my wife and son, to stay with my in-laws, I ate and ate and drank a lot, I snacked a lot, came back and weighed myself and I was exactly the same weight as when I went.
It is starting to really get me down now as all of my clothes no longer fit, and nothing can explain the amount of weight I have lost. It doesn't seem to make any difference what so ever if I drink and eat a lot as nothing helps in me putting weight on.
Alex