Thanks for hugs :-)

No - lunch and dinner meals are pretty similar and we haven't tried anything new that could have triggered the reaction. There also hasn't been any one thing in the meals he has eaten before he has chucked up to again be the culprit. Unfortunately he's not old enough to complain of a sore tummy. last night I could tell that it was going to happen as soon as he took the second spoonful as I could see him starting to retch!

Hopefully someone else will come on who has had previous experience of this and can shed some light!