my husband and i started vomitting in the early hours of yesterday morning after being at a friends home for dinner. How do we tell if this is food poisoning or a stomach bug? My main reason for seeking advice is that we are due to have Mothers day dinner this evening with our daughters and small children. Also one of our daughters is 10weeks pregnant and we are very concerned as to whether we wlil be infectious. Would keeping our distance and not having the usual close contact suffice to keep all safe?WE are both feeling much better today, just washed out ans a slight headache. Many thanks Loraine Walsh