What Does 2+ From Ketones Urine Test Suggest?

good morning I have just taken a ketones urine test this showed 2+ points as both my daughters are Type 1 diabetic I then took a BM reading which showed at 4.5 therefore I am not diabetic. I have had an extremely stressful 18 months! and for the last 6month(ish) have suffered from nausea however the last 2 days have been vomiting excessively although this has been fluid only. I eat very small amounts due to the fact that I feel so unwell. Is there anything I can do to rectify this.Many Thanks