Dreaming of eating fish is considered bad as per dream meaning and interpretation. Just simply eating fish means you will be forced to go to a place of not your liking and will have stay there for certain period of time.
Dreaming of eating fish raw means you will face unexpected problems in relationship and family. Someone who you had trusted might turn against you. It also means that someone in your family, friends or office might cause serious damage to reputation.
Dreaming of eating cooked fish means you will have to make sudden travel to place of not your liking. You will face too many difficulties.
Dreaming of eating fish with too many people means you will face damage to your reputation. An embarrassing secret will be relieved or a mistake of yours will be blown out of proportion causing difficulties in public.