Post partum new food intolerance?

This is going to sound silly but ever since my boy was born Ive found my stomach can barely tolerate garlic, im korean and always eaten ALOT of garlic with no issues ever. But even a single clove (doesnt matter if its cooked or raw) and im doubled over in agony within an hour. Ive ordered some TUMS to see if this will help but have any other mums developed a post partum food intolerance & did it ever eventually go away? Its proving to be a pain in the ass as i keep forgetting. I understand garlic on the fodmaps is common for triggering ibs and gerd but again i never had any issues prior to my son being born - in fact i could easily eat half a head to even a whole head of garlic in food in a day and other then stinky breath never had even a rumble in my gut.