Miracles in Christianity - how to answer

[Amarok]

Hi, I am a former Catholic who has by and large rejected the Catholic religion. However, one thing keeps niggling away at me: miracles.

I have never experienced anything supernatural myself, but I have heard stories of various miracles happening in both the Catholic and Orthodox churches. One particular kind of miracle that I have no answer for is Eucharistic miracles - the communion bread starting to bleed, or in rarer cases, the bread and wine actually transforming into physical flesh and blood. One such miracle supposedly happened at Lanciano, Italy, in the 7th century. A priest had doubts about the Real Presence of Christ in the Eucharist, and supposedly the bread turned into flesh and the wine turned into blood which coagulated. Scientists have tested the flesh and blood, which remain to this day, and have found it to be real blood and heart tissue. All the Eucharistic miracles that have been tested have been of blood type AB.

How would you answer these phenomena?

Here's csicop's explanation 

https://www.csicop.org/si/show/eucharistic_miracles

Here's another good site . The points to your specific example .

http://www.miraclesceptic.com/lancianoeu...racle.html

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But let's remember that this is what catholic who believe in said miracle are impressed by