i think that it is VERY common for people to "cross the lines" of eating disorders and have symptoms of more than one or move from one to another. i'd say many, many people battling ed's are not just strictly "anorexic" or strictly "bulimic." some are, some aren't, you know? i, for example, am currently working on recovery from anorexia. however, i was strictly anorexic for about a year and a half and then binge ate almost daily for about 9 months before realizing i REALLY needed therapy. so i'd strictly restrict during the day (the anorexia stuff was still there) but binge horribly nearly every night. shortly after beginning therapy, i overcame the binge eating, but i'm still struggling with anorexia.
i really think you should see a therapist. what you're experiencing is VERY common and normal for someone with an ED, but it's deep rooted. you need therapy to overcome it. hope this helps.