Who is controlling my hand?

My hand is attached to my wrist which is attached to my arm which is attached to my shoulder which is attached to my body which is ultimately attached to my brain.  But I have a very serious condition where I lose all control of these functions when there is any food containing sugar in a 10 meter radius...But seriously this needs to be dealt with.  I can go throughout the week eating very healthy, excercising regularly and then the weekend hits...

DAY
phase 1) Hand starts to go numb and grabs for every unhealthy food in the house
phase 2) feel sick and full and horrible about self
phase 3) eat more food because in the moment food is the only thing that makes me feel happy and forget how terrible i feel
phase 4) feel sicker - sometimes repeat phase 2 &3 but depending on sickness level can be too sick to continue
phase 5) feel horrible and so full that even if I wanted to couldn't fit anything else it
phase 6) sulk all night and vow to eat so healthy/ barely anything to make up for awful day

Next day
phase 1) okay new day lets be healthy...wait as long as possible before eating...
phase 2) justify eating some lunch
phase 3) make a small snack in the afternoon.. boredom gets the best of me... eat some more..
phase 4) feel awful about failing what you were supposed to do today - you'll always be a failure- you suck
phase 5) Start at phase 1 from DAY

Now.. sometimes I'll get a solid 4 or 5 days of healthy in, but it seems i just cannot stick to them...I don't know what wrong with me.