What does it mean by low insulin with pretty normal glucose in a blood report?

Hello doctor,

I am 26 years old. I am diagnosed with hypothyroid about four years ago. I started from 0.25 mcg Levothyroxine, and now taking levothyroxine 0.75 mcg. Recently, I lost 4 pounds which is very bad because I am 5.6 tall and my weight is 116 pounds. I feel weak and dizzy very often. I also have irregular heavy periods and symptoms of having too much male hormone (too much hair on legs, bikini, etc, severe acne especially a week before expected period). Since one year my periods cycle became longer, before it used to be 28 days and now it is 38 days. I am also worried because of low insulin and pretty normal glucose. What does it mean? May it be because I am on gluten-free diet for two years? Please also look at my sex hormones prolactin looks too high, and I am not sure about testosterone.