Hi and Welcome.
Are you able to test for Ketones at these times? Some ketones are wasted in respiration and can lead to "fruity" or an acetone breath.
Never heard of that,have heard of the "fruity" smell.Is it normal to feel like you are smelling amonia during an extremely high sugar? I experience high sugars after intense exercise and seem to smell amonia when deeply breathing in. I also feel like my jaw is really tight. Is this normal?