When i am under lots of stress i tend to make my self vomit for a couple of days and then i stop. is this considered bulimia? how dangerous is it?

Very dangerous: If your goal is to lose weight or to stay thin , it would be a typical form of bulimia. If it were just to relieve anxiety, it would not be typical but still be a serious and potentially very dangerous condition. The range of complications can include bad teeth to serious organ damage leading to death. Medical and psychiatric treatment are in order with these symptoms.

Bulimia: If you are vomitting to control weight it may point to bulimia but if you doing this for other reaons it would not be clear. In any event your manner of trying to treat stress will only add more stress in time. Try the anti anxiety app and consult a mental health professional who specializes in treating anxiety. Best wishes.