Need some advice and guidance

I’m 23 with a little boy who is about to turn 1. I’m engaged to his dad but are not married because of financial reasons. I grew up in church when I lived in Florida. After my pop-pop (grandpa) died I got lost for a while. He was the preacher and was always like my mentor and personal help with God. I was 15 when he died. Recently me and my fiancé have got back into church. Most of his family goes to the church we go to and his uncle is the pastor. When I was about 10 years old I asked God to save me, my pop-pop gave me a little book and in the back was a prayer to say to ask God to save you. I prayed and asked him in my bedroom by myself. Now my question is at church the pastor has been asking during his services if anyone feels they need to be saved and when he asks that I get a feeling in my chest and my hands and body shakes. My heart beats so hard and fast I feel like I’m going to pass out. Part of me feels like this is God telling me to go up there and be saved. I’m just not sure because I thought I was saved from praying to him when I was a little girl. I’m just needing to help and guidance on this please... I’m very shy and can’t get the courage to ask people of the church. Thank you