Before OR after. Yes.
Were you ever taught that Mary, the mother of Jesus Christ, was without sin?
Conceived without original sin. Yes.
Were you ever taught that Mary, the mother of Jesus Christ, was a co-redemptrix with Jesus?
No, that's silly. People pray to Mary because they believe she'll listen sympathetically, like a mother, and that she will pray for them in Heaven, but she's only human.
Were you ever taught that the unleaven bread and wine actually became the body and blood of Jesus Christ?
Of course. Jesus said it Himself. "This is my body. This is my blood."
I bet James would have something to say about that.
(see Matthew 13:55 and Mark 6:3)
However, no where in the Holy Bible does it say that Mary never had sexual intercourse after the birth of Jesus. On the contrary, it talks of Jesus' brothers, James and Joseph. These are not his cousins or the children of another 'Mary', but the half-brothers of Jesus Christ.
Were Mary's parents without sin? If not, how could they give birth to a sinless child?
Regarding communion, and I am not meaning to sound flippant, but if the wafer becomes the body of Christ and the wine becomes His blood, then why doesn't it taste like flesh and blood? And if it is all just meant as metaphor, then aren't we both in agreement? I agree that Christ said it was his blood and body that the disciples were consuming, but don't you think they would have posed alot more questions about this practice if they truly believed the contents to be actual flesh and blood?
As for the question about Mary's position as co-redemptrix, I have heard that position encouraged by other Catholics, but admittedly not by all. My question would be, why pray to another, lesser being when Jesus Christ paved the way for us to pray through Him and have instant access to the Father? What can Mary or Michael the Archangel or my deceased father who is now in heaven, do for me that I cannot already have done for me by the King of kings and my kinsman Redeemer, Jesus Christ?