If you haven’t resolved trauma experienced in the past, your body could be using weight as a coping mechanism.
Past Trauma is a pivotal FAT Program Trigger influencing Emotional Obesity. Emotional Obesity occurs when you've drawn the conclusion, either consciously or unconsciously, that being fat makes you feel safer. When this happens, you're sending the message to your body that being fatter is the best way to protect you from emotional stresses, past and present, in your life.
Your body is trying to protect you from the emotional pain (which it is unable to differentiate from physical pain) by gaining weight.
When you lose someone you love, are abused, hurt or experience unthinkable loss, your body can react by shielding you from the world with fat as its protection mechanism.