As though

Dear Everyone,

I know that by using the present or past tense, we can express probabilities in the construction as though/as if. So if I understand it well, I feel as if she is worried suggests that I think she is probably worried, while I feel as if she was worried implies that I rather suppose she is not.

But what happens when we have a Perfect after as if/as though?
E.g. (with my suppositions):

I feel as if I have entered a cage> I think I indeed entered a cage.
I feel as if I had entered a cage > It’s like being in a cage but I don’t think it is one.

Is my thinking right about these structures? Could you, please, let me know? Thank you.