Gagging After Eating

😳So this morning I had three cooked eggs and an avocado with some Himalayan salt. After I ate and was washing my dish, I immediately started gagging. Ran to the toilet and never threw up.

Afterwards, I had a massive headache and was lethargic. Went to work and came back and napped for an hour.

Tonight at dinner, same thing. Ate pork tacos and ran into bathroom thinking I was gonna throw up. Gagged again for about 10 minutes. Became dizzy and lethargic. Had to lay down. Smells from my room (weird) started making me gag.

Anyways, is this an early pregnancy symptom? AF is due this Friday (in 2 days). Help!!!!!