Concerned about my throw up having black stuff. Any idea what this could be?

This is the 4th time i have thrown up in the last 2 hours. For some reason today I decide to drink 4 shots of tequila on an empty stomach bright and early in the morning. Idk if it might js be the hangover or there is genuinely something wrong with me since when I googled what could cause my throw up to be black, it told me that it’s internal bleeding.

This is the 4th time i have thrown up in the last 2 hours. For some reason today I decide to drink 4 shots of tequila on an empty stomach bright and early in the morning. Idk if it might js be the hangover or there is genuinely something wrong with me since when I googled what could cause my throw up to be black, it told me that it’s internal bleeding.