problem of getting stopped

this is what i am going through right now. i can resist food till it is in front of me. in fact, even after that. but once i start, i just want to carry on. is this symptomatic of some problem? i do not know, but i clearly have this issue with myself. does anyone know what to do?

official agony aunt

that's what i have become... i knowingly do not go about throwing airs of a know-it-all attitude, then why do i get bogged down with people who only have problems to share? why don't i have anyone with whom i can share mine? why? anyone knows?