Normal SGPT And ALT With High Cholesterol And High LDL

I am 35 year old unmarried female, i am 5feet 2 inch and my current weight is 63 kg/ 140 lb after one year dieting started when i was 77 kg.I have high cholesterol and high LDL issue in genes (my father had high cholesterol with high bp issue). My Blood pressure is normal, My cholesterol was 207 mg/dl, LDL = 160 mg/dl and HDL= 40mg/dl from 2011 to june 2015 with few up and downs but in reports of  oct 2015 and march 2016 my cholesterol is increased up to 260 mg/dl, LDL = 198 mg/dl, HDL=51mg/dl, triglycerides = 100 mg/dl ,my other results are

Liver function test result are  ALT/SGPT = 16U/L, SGOT = 19U/L, alkaline phosphate = 114 U/L , i am vitamin D deficient. march 2016 current level of vitamin D(25-OH) =26ng/ml . i take 600000 IU two injections in 2013 when my level was 4ng/ml and then i take 200000 IU one capsule  in oct 2015 .
My prolactin level is also high since 2002 means between 75 to 100 ng/ml
My menstrual cycle is also irregular means come with gap of 40 to 70 days.

kindly tell me why my cholesterol and LDL is high if SPGT/ALT is normal. Since august 2015 i limit my whole day oil consumption is olive oil two table spoon in a day and one table spoon purified butter in a day. once in a week i eat one dunkin donut, 250 gram yogurt . i eat one egg daily.