You shouldn’t be that hungry on keto. Its likely due to your electrolytes being out of whack, or psychological. I know someone with a stomach bug who just cant go to bed without food, he’s not hungry but believes he needed to eat. It kept him up all night being sick and he still tried to eat the next day. Same results. Is it a mental thing or are you not getting enough salts?
I deal with the hunger with the usual way - my head, that does all the decisions, good and bad ones. How long are you doing keto? There rly shouldn’t be that huge hunger issues, not to mention when you gained 70lbs, there should be plenty to go round.