colesterol is necesary for your organism necause it used in muscular tissue, however your organism will deposit the remaining elsewhere throughout you body, such as veins, arteries, and fat. yes you need to balance your cholesterol levels, however it wont have a major impact on you, unless you do some kind of exercise which requires cell repairs, and cell reproduction and duplication

You need the individual numbers, even tho your total is very low. The HDL/LDL ratio could still be out of line, and you can do stuff to fix the ratio.

If you had your blood drawn in the last few days, there is a good chance the lab still has it and could do the tests without your being redrawn. Check with them or your doc.