Not having a bowel movement often enough. Could be a blockage or could be drug use. Pain killers will slow down the bowels. Too many and you can get stopped up. Any heavy pain killers, opium, heroin, would do it.
Worms usually cause vomiting because it feels there are butterflies in the stomach that cause nausea.
A nerve agent would cause drooling, breathing difficulty, and vomiting.
Water in the undigested food will not be absorbed and the undigested food will be watery
yes
Nerve.
nerve agent
If you are purging, the strain of vomiting could be the cause.
stomach virus maybe ?
Have your gall bladder checked.
Cheak fuel pression in the morning.
fiber
The question is not quite clear. If it is meant to mean "Does citric acid cause vomiting?" The answer would usually be no. Citric acid is the acid found in citrus fruit, such as oranges and lemons. The acidity would not cause vomiting, as the stomach uses hydrochloric acid to digest food, and is able to cope with quite strong concentrations. The citric acid could cause vomiting if too much was consumed at once, but even water can cause vomiting if taken in very large quantities.