Hi Maggie,
It's hard to discuss this without being a bit graphic, but when you say you have got diahorrea, is it like conventional diahorrea, or is it more like a total lack of control when you go for a wee?
If it's more like the latter then it could be a some people have said on another thread, that the mineral content is affecting your system ...I had the same symptoms for nearly 2 weeks, but now on week 3 and symptoms have gone.
If in doubt, check with your doctor to be on the safe side, and put your mind at rest.
Sorry I can't be more help.