The Carmelite nun to whom I referred already had a deep devotion to God and relationship with Jesus Christ. She spent many hours in contemplation. Her trust was in God, not in man. Her prayer was addressed to Him.
Personal experience is not easily expressed in words. When a person is in love, he/she is the only one who knows what that experience is like and no amount of words will ever fully discribe the feelings he/she feels.
As Catholics, we do not place our focus on the gifts but on the giver. “Many find their baptismal faith revitalized by praising God together as charismatic Catholics…[only one] of the ways in which baptized members of Christ’s Body live out the mystery of their baptismal vocation” (Handbood for Today’s Catholics).
The CCC and the United States Catechism of the Catholic Church both refer to the charisms as useful to the upbuilding of the Church. On a different thread, I posted the various references including Scripture and books written by leaders in the renewal.
The OP asked a simple question. While the focus of Catholic teaching is not on the charisms of the Holy Spirit, yes there are members of the Catholic Church who do pray in tongues.