Fishy Smells 😕

Does anyone else notice a slight fishy smell when discharge comes through?! I’m getting clear discharge but I noticed my underwear smelt a bit funny the other day and now I’m super paranoid. We did have fish last night for dinner but never had this before and pretty sure it wouldn’t be that. I shower everyday so not like I’m not hygienic etc but baffled. Any advice or tips or anyone experienced this before? TIA.