Hi My daughter is 11 months now and when I started weaning her she would vomit an hour or so later, banana, pancake, cheese.... It turns out that she has lots of allergies, including rare ones such as banana and corn. Is bub sick after other food stuff too or just the tatties? Also, does he have any skin problems, such as eczema? Just a thought. Let me know if you would like any more info on allergies...I'm becoming an expert. Trine