Fatigue from dieting

Every time I start a calorie deficit (about 400 cal deficit) I get so tired about a week in. Unfortunately, being tired is one of my triggers to overeating. I’m just wondering if this happens to anyone else and does it normally pass of I just push through. If it’s a temporary phase I think could give myself some grace to cut back on chores etc and just get more sleep for the short term. If it’s not going to be a temporary situation I’m going to have to change what I’m doing as I can’t slack off indefinitely. Just looking for any advice. I get decent protein, and stay hydrated. Would love to hear if others have struggled with this and what solutions they have come up with. Thanks!