I just recieved blood work test results back. All my levels were normal except my bilirubin, which was a 1.4, and my overall cholesterol level of 137 (the results indicated that was low, although my HDL and LDL both were in the normal range. I don't drink regularly (a beer now and then), I don't smoke, I eat healthy, and I walk 5 miles every day. I am a 39 year old female. Is an elevated bilirubin and low cholesterol anything to worry about?