Orange creamcicle flavored ice cream is pretty easy to find. But I think it’s usually vanilla ice cream with layers of orange sherbet. Strawberries are acidic and strawberry ice cream is a popular flavor.
In my experience, apples just don’t taste very good when frozen. Maybe that’s why they don’t sell frozen apples at most supermarkets?
Sounds like anxiety. Mild nausea and loss of appetite are something that I deal with on a daily basis. If you are happy then it could just be nervous excitement, like having butterflies in your stomach.