chills a few hours after drinking?

i had a few drinks last night and was definitely tipsy/a bit drunk but i don’t think it was super excessive, and i made sure to drink a lot of water and felt a lot more sober before going to bed. however, i woke up an hour later shivering pretty badly, even with a sweatshirt and multiple blankets. i eventually went back to sleep and felt mostly better in the morning, but something similar happened last week after having had a similar number of drinks, and i assumed it was just related to dehydration and too much sugar but i took more precautions this time and felt the same. all the sources i can find say alcohol poisoning (hypothermia) or withdrawal, but it had been a few hours since id had any alcohol at that point, and i don’t drink very often (so withdrawal wouldn’t make sense). anyone know what might cause this? could it be a hangover thing if it’s only a few hours after drinking (4-5)?