I know how you feel, sort of. I have a total complex about gaining weight, I was already at my heaviest non-pregnant weight when I fell pregnant. Which while sure, by general standards was not really obese, but I've been petite most of my life so having some extra meat on me had been feeling weird.
I've actually lost a few pounds this pregnancy because of my nausea and vomiting, but despite that, my mom is actually on my case about gaining a ton of weight. Anytime I reach for a cookie or anything that might be considered a treat, she tells me if I am not careful I am going to end up 400 lbs. (I'd have to gain well over 200lbs to reach that goal.) Needless to say, I already have a ton of food aversion and trauma from eating due to the vomiting, having my mom add guilt to eating hasn't exactly made the whole thing any better. I've asked her to stop, but she won't listen.
You are not unusual, I know of so many ladies who've managed to avoid throwing up by eating, and often the foods that help calm the stomach are high in calories and carbs. Sometimes when you're uncomfortable and have no energy, you have to do what makes you feel the best.
You will lose the weight again.