[30 Sep 2019 Monday] 1.5 hours of gym workout caused my blood glucose to drop to very low levels

On 30 Sep 2019 Monday, I went for 1.5 hours of gym workout again. Before starting my gym workout, my blood glucose reading was 7.3 mmol/L. After 1.5 hours of gym workout, my blood glucose dropped to very low levels, that is, 3.6 mmol/L. My gym instructor asked me to stop, forget about the cool down exercise, go home and take my dinner.