Ds2, at 4yo, had one of his worst mega-wobblies ever after we'd eaten at a Chinese. I think it was the MSG that triggered it. We were staying at a small guesthouse and ds almost tantrummed the place down when he woke up next morning. We eventually got down for breakfast, where the owners asked cautiously "Is everything alright?" "Oh, yes, everything's fine." I had to say, with a sickly grin on my face......