38+2 with DC3.
Have been feeling sick on and off for last 2 weeks and have had a lot of lower stomach pains but not what I'd really call crampy.
Anyway, woke up not long ago with excruciating stomach ache (thought it was because my knickers were a bit too tight 
). Decided I needed the loo, then.............
I don't feel ill at all (apart from the ususal early morning queasiness) and stomach ache now gone, so don't think its a bug or anything.
I know that diarrhea can be a sign 'things are about to happen!'. But how long? Hours? Days? I never had anything like this with DCs 1 and 2.
And I'm only asking as I'm seeing my consultant at 9am to discuss induction.