Hi again.
Things ARE out of control again. I'm not saying that to scare you, or to nag you, but if you are eating only 5-600 calories a day and your heart rate is "in the 40's," then you are spiraling and you are definitely displaying anorexic tendencies.
Kudos to you for doing so well in stopping the binge/purge cycle!!! 37 days is an accomplishment, especially doing it alone. But you need proper nutrition in order to keep your strength, your blood iron levels, and your general health in good shape.
I HATE that you are not receiving expert help, but there are some "diets" out there that are healthier than what you are describing and that will help you get healthier again. They have specific, daily menus that can be similar to those that a nutritionist would prepare. You need to be eating AT LEAST 1200 CALORIES PER DAY!!!!!!!! Less than that and you are REALLY playing with fire!!!!
There is an eating disorder forum here that you can visit for more discussion. The web address is
http://www.medhelp.org/forums/show/165. Also, there is an expert forum, visited by doctors who will offer help to you at the following address
http://www.medhelp.org/forums/show/268. Please consider visiting these sites and getting some help/support.
You can always contact me by clicking on my blue name and leaving a personal message. I'm glad to help in any way that I can.
Take care!!