emetaphobia…my son developed it when he was 8 and pretty bad used to keep him awake at night, would only eat safe foods etc….didn’t realise he had the phobia until he had a panic attack watching a rollercoaster YouTube video where someone was sick. Ended up going down hypnotherapy route and he’s loads better now, not mentioned it in months….still have to switch tv over quick if someone is vomiting…just in case…