Being sickened by food is read symbolically as something you took in — an idea, a situation, a person’s words — that did not agree with you. It is a dream image, not a statement about health.
When this appeared in your dream, what were you feeling?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.