I m 46yo F. have had nausea for a couple of days, yesterday was the second time this week I vomited, but last night it was very lime green, didn t feel too acidic, most of the lime green appeared to be the consistency of mucus. I know it wasn t anything I had eaten. When I vomited a couple days ago, it looked like normal colored brown emesis from someone who maybe hadn t eaten much. I know what bile looks like, and I ve been in the medical field 26 years and I have NEVER seen vomit this color