Hi, has anyone experienced this? I had my whooping cough vaccine yesterday at 21+4 weeks and today I haven't eaten anything untoward but have had bad stomach pains and a few hours of diarrhoea! Sorry if that's TMI for some people but it's a part of life 
Ultimately diarrhoea for myself is better than the alternative of baby having whooping cough but I was just curious if anyone else has experienced this or if it's just a coincidence!