Can I gain my 18 lbs I lost in One night?

Anonymous
hi I am so depressed I want on this diet and I found out that I lost 18 pounds today nd I lost control at the end of the night I got Chinese and it had General tyso chicken and A egg roll & fried dumplings. is it possible to gain all 18 pounds in one night I am literally crying right now I'm so depressed please answer my question
Can I gain my 18 lbs I lost in One night?
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