Oh LaSurprise that is scary, but most likely nothing. I'd give them a call too, and/or work from home. In my office there are loads of parents of school aged kids so it becomes quite deserted in the summer hols, so I minimise going in, which means I can snack all day and have decaf without anyone noticing.
And I can join everyone in the smelly corner. I have the delightful combo of constipation, wind and bloat. I get a minor version every month after ovulation, so I blame progesterone.