Sick after a meal 💔

What's wrong with me I noticed a few times in the last past few days after I eat I feel a lil nauseous 😞. My period is due on the 10th so maybe that could be why I have no clue or maybe the hot weather I live in California the weather has been 103 and up all week  ? I know I'm not pregnant 😒 dose anyone have any idea or similar things ?