Any other singers out there?

Any other singers out there? So a big reason I got into songwriting was because I could express myself without stuttering. My singing was totally fluent for years, and then my stutter seemed to jump into my singing voice in a singular moment one night. I was recording alone and all the sudden I couldn't get past a word. I tried to shake it off but it happened again and again and again and I packed up and left, terrified. It took almost two years to feel like I had my voice back. It still hangs around in small ways. Anyone have an experience like this? I always wonder how much of stuttering is mental. Like if I didn't get scared that it was taking my singing voice away, would it have? It seems to feed on attention, but who knows...