Brushing your teeth in the morning, nausea, retching, blood. What's going on?

Morning brushing nausea retching blood, need to consider two situations, the first may be caused by chronic pharyngitis, due to throat mucosa stimulation, brushing is easy to cause nausea retching symptoms, there may be small blood vessel rupture, causing bleeding. The second situation is mainly because the patient's own throat reflex is sensitive, after stimulation will appear retching situation, severe retching easily lead to throat mucosa damage, thus accompanied by bleeding symptoms.