I got glasses, now my eyes hurt when I don't wear them…progressive lenses?

So to make a long story short, I have an astigmatism in each eye and have problems focusing, which was causing eye strains, and headaches. I got my glasses on Friday and my eyes adjusted really fast, I can really tell a difference. I'm just confused because when I take them off I notice immediately that I need them again for comfort on my eyes. I never remember my vision being this bad, I have progressive lenses by the way. Does my brain know that this is the correct way and now when I take them off its more evident to the extent of how bad my vision was? Can someone explain this to me?

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