feel tired and a little nauseous after tattoo

Does anyone else here feel tired and a little nauseous on and off for the rest of the day after a tattoo. Just did a tattoo on myself today and have been feeling like that. I’ve felt like this when I’ve gotten tattoos in the past also. I read that it is because of endorphins, nervousness, and different peoples bodies reactions to tattoos. Just wanted to know what you guys think.