Hello Rhys,
I think a lot of us who have come from a church miss one aspect or two once in a while. One thing I miss is the group worship (praying, singing). I've been back to visit. I was very welcome. On a couple of occasions the pastor told me that if I kept thinking this way that I'd go to hell. He told me that I questioned God too much; that we are not to question God. On another occasion that I visited, the preaching was, maybe coincidentally, on hell.
I remember I used to go with the pastor and two or three other brothers to a local AM radio station to read the Word and preach. I preached a few times myself. People would call and ask for prayer, and we'd pray for them. I preached at the church as well, and sometimes taught the Sunday School class for adults.
It is normal to experience this. After all, we are all weak. But our good Lord is working on maturing us. He brings these feelings out to the surface to show us what He must prune from us. It takes time. When it happens, just praise God and thank Him for being at work in you, for molding you into the image of His Holy Son. He's pruning you so you can bear more fruit.
Psalm 138.8: Jehovah will perfect His work in YOU Rhys!
God bless you brother.