I don't understand

So I've noticed more recently something very odd that has gotten more intense especially this year. I haven't told anyone this, but today made it overwhelmingly clear that maybe I should at least write it.

Every time I am engaged in a worship service and singing the songs and everything, I kind of can't get through the song. I start singing and out of no where I feel like I want to just cry. Every song almost, especially the ones that really mean something to me I feel like just putting my face in my hands and cry.

I don't know why, not sure if it's something I'm suppressing, conviction, I'm not even sure if it's a happy cry. I just know it wells up inside of me and I refuse to let it out (I'm not a cryer in front of people, especially if the lights are on in a worship service). So I stop singing because this overwhelming feeling to cry comes over me and I can't sing anymore. I quickly get rid of the lump in my throat and sing again, only to have it resurface.

I'm not sure why it happens, haven't figured it out yet, but I would really like to figure this thing out...maybe I just need a good cry..who knows.

All to God