 [ Symptoms ] i just vomited and it was just yellow liquid and i did it three times i know this sounds weird but also 6 brown tube like things that i threw up since it was my vomit and i was scared i touched one and it was a jello consitency [ Disease ] the stomach contents can be definitely be bright yellow when empty of most food this is the normal stomachgastric fluids as far as those brown tube like things i really can not comment since i did not see it if your vomiting subsides i would not be overly concerned but if your are continuing to vomit please consult your medical provider for advice someone who knows you and your medical history