Please dont laugh at this..it's serious?

I go to the loo every morning at about 10 o'clock, regular as clockwork and have done for years. Now where I work the factory is downstairs and the girls in the office are upstairs. Last week we had the builders in to make some changes.The toilets are now upstairs right next to the girls and the walls are paper thin!!I have my first cigarette about 9.45 which makes me want to use the loobut since monday I've had to hold it in! noww my insides are in bits!! I reckon I'm doing some damageEven if i dont have a ciggie i still need the loo.It's making me ill. What can I do? I cant think of anything ??