Am I overreacting ?

My husband didn’t tell me about some minor debt he had before we got married , a credit line and loan he’s paying off. I don’t know what that was used for but why do I care too much?

I don’t care to know everything about what he’s done , but I’d just like some transparency. He said he didn’t tell me because he has it under control. There’s been times I’m writing our financial budgeting and just omitting from that info kind of made me upset .