Has anyone had any nasty side effects??? This morning I had a cup of tea at 7am then a shake at 8.45. By 10am I had the most agonising stomach pains and had to run to the loo. Twice. At work!!! I've been ok since then but scared to have a shake for lunch in case it's that?? I hope it's a big as SF seemed to be really working for me (even though it's day 3), with no hunger pangs and it's so easy. Help!