Eating disorder relapse

Just saw a photo of myself where I feel like I look hideously large... I was bulimic a couple of years ago and I got myself out of it and have been doing really well. My relationship with my body was amazing until recently. I’ve been fighting similar feelings and thoughts to when I had my eating disorder but I just saw this photo of myself and it pushed me over the edge... I want to start purging again. I don’t know what to do. I feel disgusting. Fighting every fibre in my being not to throw up right now and I haven’t even eaten in 9 hours