Im scared (tw:ed)

I used to love eating, but now in scared to eat three meals a day, Ik what this is but i dont wanna accept it. I feel bad whenever i eat well, I starve myself the next day. I know this is such a sensitive topic to speak and its so insensitive of me to bring this up here but idk what to do, im already underweight and lost 8 kgs in a period of 25 days. Should I get therapy why am I this scared? I feel so bad and im not able to enjoy my favourite foods at all, I feel like theres no point in living this way restricting myself and not being able to enjoy things I once used to love. I really really want to go back but idk how.