Welcome to HealthcareMagic. As you mentioned, blood sugar levels of 1.5 mmol/l = ~ 27 mg/dl is severely low.Such low levels are generally seen in Diabetic patients, which you are not, or probably undiagnosed.So you can get your HbA1c
levels checked. Else in pts with hypersecretion of Insulin (hormone)/Insulinoma
, in which it is better to find out blood insulin levels. Also there are drugs like quinine/ Pentamidine
which bring down your sugar levels. At times, though rare, extreme starvation
brings down sugar level. So I would suggest you consult with physician and get thoroughly evaluated.Take care.