Frequently, no symptoms will show until the mid 20's or 30's - if they do at all. It has the potential to cause complications in pregnancy and may lead to shorten life spans because of an increased chances of heart-attacks and stroke. The chances of heart-attacks are greatly increased if factor II abnormalities are also present. Correcting the mutation would require genetic resequencing - short of Star Trek, that technology is not generally available. Watch your triglycerides and cholesterol, too.
Some anticoagulants can increase both.
Have other members of the family tested as well. V maight occur spontaneously, but it is more likely to be caused by some physical trauma. I am not a doctor, but I have been to several very good ones who believe in keeping their patients well informed. If your hematologist doesn't - find yourself a new one. If I have left anything out, please let me know.