170.Why nausea and vomiting are happening, in which diseases are..

Nausea is bad feeling over navel, as not an always till vomiting leading, as nausea having with sweating, headaches, weakness, salivation, but vomiting is removing all from a stomach, or bowel, through mouth, as causing theirs a nerve centre in head brain column, here are signals from digestive highway, which not happy from a stomach mass, or bowel, where they are over filled, or theirs walls irritates are theses cases reliving and vomiting.
In diarrhea, thus in in organism entered bowel s infection, in strong nausea, vomiting happening stool dye, urea dark thus means is hepatitis.
In belly aches, sour icterus , bitter mouth taste, hard stool, or diarrhea, these are gastritis symptoms, ulcer stomach, small bowel, gall, pancreatitis chronic.
Central nerve system diseases also having nausea and vomiting in.
Bad balance is  on the morning slightly nausea, vomiting on the morning, but in bad vision, step,and headache thus visiting a doctor, as tumor in head having maybe.
With a high temperature, headache strong and squeezing occiput muscles,thus here is meningitis.
With balance loosing,dizziness in a fast body position changing, rolling in bed on an other side,thus vestibular apparatus damaged.
If nausea, vomiting having with pulsating headache as in light fearing, thus migraine having.
As headache string and vomiting in high pressure.
Breast in ache with vomiting is myocarditis infarctus.
In nausea, vomiting in teenagers girls is menses display.
In pregnancy nausea, vomiting usually having with a light dizziness,weakness, sleepiness.