It has happened to me many times and for different reasons. Sometimes it is that I’ve read about something, maybe the life of a Saint and the suffering they endured for their faith, and the same line of thought will come across in the Gospel. Other times it will just be on my mind that I wished I had done something better, maybe handle a situation differently, and it is on my mind to ask for the grace to do it better and out will pop just the right words of comfort in a reading or a Psalm that seems like it was read just for my benefit.
I try to remember that these emotions form a part of our God-given conscience, and they are nothing to fear or want to hide from. Just my opinion, but it is these things, these feelings that help us understand just what God’s holiness is all about. They leave those indelible marks on our conscience kind of like trail markers that help us negotiate our way in life should we come down that part of the road again. Read Isaiah 6:1-8 and you will see what happens when imperfect humans come smack into the presence of God. There is an overwhelming sense of inadequacy, of not being able to measure up in some way. Moses felt the same thing on Mt Sinai. So did Gideon. So did the Apostles when they got a glimpse of the Transfigured Christ.
In our human existence, we feel apprehensive whenever we come up against that kind of high standard. But the good news is we can be made holy and share in that wonderful spiritual existence that leaves us in awe. So experience what you will in the way that you do, but know those experiences do not leave you inadequate. They help you grow closer to God.