Cravings..?

Didnt feel like eating anything. I ate because i needed to. I feel like puking the whole time but nothing really came out. Then somebody mentioned pancakes and it felt like something i could swallow. i asked husband to cook it and after eating it, i felt a whole lot better and didnt feel like puking anymore. Am i overthinking it? Or are these what cravings are like? First trimester, first time momma here :)