Former bulimic weighing in here. I was bulimic for almost TWENTY years. Count them. Twenty. That life is the one thing I would never wish on anyone, and for that reason I feel the need to lecture...
I started my eating disorder at the age of 15. Of course, it all began years prior but the behavior started at age 15. I really, really hope you are getting some type of help for the bulimia. Whether it is through friendships or formal therapy or books or online help. Don't do it alone; the disorder is about an isolating as you can get. Are you in school? Your posts make it sound like you are at home all day. Home schooled or just home from school due to the progesterone storms? With bulimia comes depression; which one comes first I do not know and might be different for everyone. Omega 3 fatty acids were SO helpful for my moderate depression.
Replenish minerals; especially zinc. Zinc can also help control appetite. I can see in your writing that food is still an obsession, and calories still weigh heavily on your mind as the gauge of progress or failure. It breaks my heart.
I'm not even sure where to start. Not one thing works for everyone, but I'll tell you what seemed to work for me.
Exercise. Keep social and keep busy. Wallowing in the self-pity only makes it harder not to binge. Go gluten free! Seriously. 100% gluten free. Processed sugar? OUT. For now, don't focus on how much you are eating, but instead on what you are eating (increase fat and vegetables and water). If you are eating 100% primal, then the weight isn't going to be climbing. After several weeks of eating primal, then look at how much you are eating WITHOUT making it about calories. No more calories. I predict that you will feel better AND that your periods will not be as bad once you get your eating under control. Since going Primal, my periods have been no problem at all. I was a psycho for the few days before my period. In addition, about the time of ovulation I had these weird dizzy/floaty episodes that freaked me out so much I just wanted to eat carbs to feel better. Those two things went away within 6 weeks.
I found the longer I went between binge/purge episodes the less I wanted to binge/purge. I hope that holds same for you.
I am all over the place here. Most of all, congratulations on taking charge. I love the fact that you journal, and I look forward to watching you (figuratively) grow!