Ketones in urine

Allison • Family of girls 👩‍👩‍👧‍👧same sex mamas👩‍❤️‍💋‍👩 TTC no.3

I tested my urine at work the other day ( dip test strip) and found I had a very large amount of ketones in my urine. I am not diabetic nor have I been starving myself and I’ve been drinking fine. I see my midwife tomorrow but does anyone know why I would have such a high level?