Eva, I have started 2 news jobs in the last year and both times a huge flair. (The first job was Sept 2007 and only stayed there 6 mos the boss was awful, yelling etc and the job was terrible so I am sure it made my flair worse)
Try to relax and not worry so much stress sure makes me go to the bathroom more.... I think with some preparation you will be ok. maybe you can try some anti diarrheals if your doc lets you take them. Make excuses for the liquid drinks all day like you don't like to eat a heavy lunch etc...
Good luck and I hope your first day went well!!!
Diagnosed w/ Crohn’s Disease March 2007 Started Humira June 2008 (have been on other cd meds)
Diagnosed w/ Fibromyalgia May 2007 on Soma and Lyrica