Hmm perhaps you really aren't getting what I mean.
I present what seems to me to be your argument - this is my impression of what you mean.
I then ask you if that is your argument, or if your argument is something else.
Is that clearer? If for example you didn't eat an icecream while in Egypt, and I asked you did you eat an icecream while in Egypt, you could say 'no, I didn't eat an icecream while in Egypt', for example.
In the same way, when I present something and ask 'is this your argument?' you can say no it isn't or yes it is. You could then, if you wish to, choose to explain what your actual point is. Do you see what I mean, or do you not see what I mean?