high insulin and normal sugar levels

I am new to this abnormal happening!!
2 weeks ago....i went to gyne to report her my early miscarriage in march 2008 and to find out the cause of having not conceiving since my marriage in 2007. it is now taken up almost 22 months.

problem arise when i get all bloodtest of hormones and ultrasounds normal( simple ultrasound, trans vaginal ultrasound, FSH,TSH,LH,Prolactin,Progesterone,Testosterone,cortisol,estradiol,DHEA) and normal fasting and random glucose but high insulin around 110 (1st time) and 127 (in repeat).

i m 27 and not obese having 47 kg weight. but have routine headaches n neasua with low b.p all the time and weakness with foggy head, dark skin, skin color changes from last 3-4 years and from past 3 months palpitation and feels like needle in feet.

does alone high levels of insulin can cause miscarriage??? or does it affects in conceiving?? my fasting glucose levels are 70 and 80 and glucose random is 92 around.

plz if you r suffering the same or know d problem and treatment?
is it alone harmfull for the body?
is it falls in PCOS?

p.s: today, i went to lab for repeat insulin and fasting blood sugar to confirm 4th time. i also went to endocrin who said this is d first case he is having with. he will reply me after getting my these repeated results. then he will suggest me to do Glocose Tolerance Test. i am not a diebetic (diabetic) patient and not even my family.

plz reply

[Dot.Calm]

In order to respond correctly try to post the exact test result numbers as listed on your medical test records. Don't assume we know, or can read your mind, or know what country you reside in. Please do NOT make things up. The quality of your post equals the quality of the response. Try to be concise.

"normal fasting and random glucose but high insulin around 110 (1st time) and 127 (in repeat)."

Did you fast prior to the test? Later you say you did for the 4th test. Is the above your 1st? Did you stop taking any medication prior to the test?
Normal insulin values are are 5-20 mcU/mL while fasting. (Note: mcU/mL = micro unit per milliliter). Elevated insulin can be seen with:
Insulinoma - pancreas tumor
Type 2 diabetes
And, high insulin, even with normal blood sugar, may indicate that the pancreas is working harder than normal to lower the blood-sugar level. This situation is usually caused by the body being resistant to insulin's effect -- a condition called "insulin resistance syndrome." It is very common with polycystic ovary disease, PCOS. Go see a doctor specializing in Gynecologic Oncology to rule out PCOS.

You follow with "my fasting glucose levels are 70 and 80 and glucose random is 92." If these were in mg/dl then you would be considered normal.
Scroll down and read the thread in post - [What are the non-Diabetic levels (mmol/L) of Glucose by Frank303, Nov 08, 2008] for mmol/l and mg/dl glucose table.