Hi there, I have been sick since Saturday and throwing up, I paid a visit to my family doctor today and he told me that my vomiting is most likely being caused by over use of marijunana and told me to take Gravol as well as limit my usage, which should have me feeling better in no time. After I got home I began to vomit again but am now noticing that it was very dark brown. My research has shown this may mean some sort of bleeding in the stomach and to get medical assistance right away. I am conflicted as to what I should do.