Why do you feel nauseous after an orgasm or ejaculation?
Nausea can be a common side effect of orgasm, with nausea after orgasm being one of the most common causes of vomiting. This is because orgasm not only causes the release of dopamine and adrenaline, which are responsible for feelings of pleasure and excitement but also releases serotonin, which is responsible for feelings of nausea.
Nausea after orgasm can also occur if you have an underlying mental health issue such as anxiety or stress, or if you have been drinking alcohol or taking drugs. In addition to this, it can also be caused by food poisoning (when you eat contaminated food), allergies to certain foods (i.e. gluten), or even psychological factors such as metabolic disorders like diabetes mellitus (type 1).