Will my regular tolerance for fish and other meals go back to normal?

I'm currently 6 months pregnant and will have a baby boy. While I've never developed morning sickness (as in no nauseous nor vomiting), I've been experiencing stomach indigestion starting last month.

If I eat fish (in any version... even as simple as baked fish with salt or in a soup) or other foods I used to enjoy without problems, I can either have constipation, diarrhea, bloatedness or smell, sulfur burps. It's like all of the sudden I'm having a sensitive stomach. I can't even enjoy snacks at a party without feeling bloated afterwards. Even celery got me bloated yesterday too.

I'm finding myself limited to just boiled chicken, baked chicken with only salt or simple steak with only salt, accompanied with a diet soup. I've never had this happened before. I'm told it's normal but hopefully my tolerance for the foods I used to enjoy return.

Will my regular tolerance for fish and other meals go back to normal?
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