I think there are different ways of being a bulimic to be honest. I am one but I've never made myself thrown up. I starve myself when I feel guilty after a pig-out. Like, 30mins of eating like a pig leads to one week of total starving.
Now, I'm not sure I've got enough knowledge to really answer. I'd say maybe you've got a "slight bulimia"?! I'm not being very useful here, sorry.