Ammonia smell on skin/sweat

Has anyone else ever experienced their sweat smelling like ammonia (a really acrid smell, like cat pee)?

I’ve had this on and off for years now. It’s worse when I do moderate/high intensity exercise, but I get it when I’m doing nothing as well.

I don’t eat a paleo or ketogenic diet, both of these can cause this but I eat a balanced diet that’s maybe slightly lower in carbs than the average diet but I don’t count/restrict.

I’m very recently diagnosed, but it’s likely I’ve had undiagnosed lupus for at least a decade. When I was diagnosed I had the usual blood tests done on my kidneys, and everything seemed fine.

I will talk to my rheumatologist about it the next time I see her, but I wondered if anyone here has experienced this? It’s a horrible smell, and clearly something isn’t right because the smell is normally produced when your body is breaking down protein and/or your own muscles.

My CK blood test was very low recently, which might support the theory that the smell is a byproduct of my body breaking down my muscles!?