Flame have you changed LO to Stage 2 formula recently, that could be an issue yes
I only mention this as I recently was unable to get hold of Isaac's usual stage 2 formula and he has had diorehea since being on the changed one. However, I have a cold and he's also teething, its so hard to know, I found this if it helps? Do whatever feels right to you, ring NHS Direct too, hope he's better soon
For both vomiting and diarrhoea in children:
*If you are breastfeeding or bottle-feeding your baby, continue to feed them as normal. If they are reluctant to be fed, feed them little and often.
*Reassure the child. Keep them comfortable and warm, with some fresh air circulating if possible.
*Keep them hydrated. Give them small amounts of water or unsweetened fruit juice to sip slowly. You can also add a rehydration formula to water, which is available from pharmacies. A rehydration formula will provide the correct balance the water, salt and sugar that your child loses through vomiting and diarrhoea.
*If your child wants to eat, offer them soup and foods high in carbohydrates such as bread, pasta or potatoes. Do not starve your child. Don't worry if they refuse to eat - just make sure that they drink plenty of liquids.
* If you child has a fever or headache, give them liquid paracetamol or ibuprofen. Do not give your child anti-diarrhoea medicines - they are intended for adult use only.
*If either vomiting or diarrhoea continues and the child seems generally unwell (with fever, rash, abdominal pain or drowsiness) seek medical advice from your GP, or call NHS Direct on 0845 4647. Always get medical advice for small babies.