Dont worry about it
How we treat our body is how we reflect on our minds usually. I think we all have a minor autodestructive thing in us. We all do some things that are bad for our body, but that is almost inevitable.
Try not to be worried, its just a procedure. But if you are feeling like that it is your fault, it is, but there should be no regret there, there is no use in it. You can either choose to live with it, or to fix yourself and prevent future health issues, at least thats my opinion on subject.
I am sorry if i may sounded a bit cruel, it isnt my intention