4. Extreme Fatigue
Your body uses blood sugar for fuel, but prediabetes causes insulin resistance, which means your body can’t convert glucose into energy efficiently. This causes fatigue and excessive tiredness, the specialist explains.
5. Sudden, unexplained weight gain or loss
When your body can’t get the energy it needs from blood sugar, it starts burning other things for fuel, which can lead to weight loss, even if you don’t diet or exercise, Gupta says.
On the other hand, insulin resistance can make you hungry and cause you to gain weight instead of losing it.
6. Some areas of skin are darker
High insulin levels can speed up the rate of skin cell reproduction, leading to a condition called acanthosis pigmentosa. This happens when the skin on your neck, under your arms, or in your elbow creases begins to darken and feel smooth or velvety, Gupta says.
