Everyone has seven emotions, originally crying as a catharsis of grief is not strange. But if the crying is very serious, there is painful crying and tears, and finally lead to nausea, vomiting, then need to be extra careful, may be excessive grief caused by acute dysfunction of the autonomic nerves. Excessive sadness is undesirable and may have adverse effects on the body. Therefore, you must be calm when things happen, even if you are sad and crying, you also need to have a degree. The action of violent crying may cause hyperventilation, leading to extreme dysfunction of the vegetative nerves, resulting in nausea and vomiting. Some extreme people, may be also cry to fainting, unconscious, or induce serious cardiovascular and cerebrovascular disease, resulting in organic damage, which will not be worth the loss. So when crying to nausea, vomiting, at this time indicates excessive sadness, must be timely mediation. If family members, relatives or friends are around, they must be more persuaded. If still can not be resolved, it is necessary to seek medical attention, if necessary to be psychological implication, you can also consider the choice of oral anti-anxiety, improve the mood of the drug. It is good to control extreme sadness and crying as soon as possible.