Embarrassed to be asking this, but for the last few days I've been having what can only be described as pencil thin BMs. Is this normal? Should I be concerned? Should I see a GP at all - and if yes, after how long? I feel well otherwise, but (stupidly) googled and am now stressing that it could be something serious. I'm not sure whether it's IBS or not, but when I looked at various IBS websites, I seem to fit a lot of the symptoms.