Answer:
the alcohol in your drinks. It's a toxic chemical that works in the body as a diuretic, which means it makes you pee more and you can become dehydrated as a result. Dehydration is one of the main causes of your hangover symptoms.
Step-by-step explanation:
LOLLLLL DO NOT DRINK ALCOHOL PLS LOL AND DONT PEE SO MUCH! hahahaahhahaaaahahahahhahaahhahahhaa