Is epidural risky? I’m thinking of becoming a gestational surrogate but i dont know much about it

So I have kids of my own and I know that was a requirement, i’ve had healthy pregnancies I’m healthy overall, and I really just want to help someone become a parent!

So I want to know the risks of it, I just want to make sure i will be ok, what can go wrong with becoming a gestational surrogate?

Also I want to know the risks to epidural, is it risky taking that? What can happen if it goes wrong?

EDIT: I also wanted to see if the shots you have to take are risky as well to become a surrogate, and also all the pills