2nd line of defence?

I have been vomiting for about 36 hours now for an unknown reason so I have been desperate for a cure (doctor's solution didnt work... in fact b/c it was a liquid i vomited from it). Well I was looking for cures online yesterday and saw that weed is the 2nd line of defence for nausea and vomiting. Well from that I figured that it wasnt as good as the other drugs and my parents were home so i couldnt very well smoke to test that. Today my parents leave to go to work and I went and smoked. It wasnt enough to get me high but I am no longer nauseous. Hell no this shouldnt be the first line of defence.