Hypothetically, how would you react and/or feel if you found out you were cloned from your paren’t DNA?

I’m writing a character who doesn’t know he’s a clone, though was under strict supervision for eating and health that were certainly unorthodox by his dad. He finds out he was made in a tube via a journal and I’m not sure how to write his overall reaction? Angry is a given, but would knowing affect him as much? I figured why not get to the meat of the question and ask actual people for hypotheticals. (Unsure if this falls under the “specific information” rule)