as for PhiNova, i'm really sorry to hear that man, i have a few family members going through cancer right now, it sucks...  but all we can do is hope, yanno ?  and for you, i'd suggest being somewhat cautious and watch out for warning signs, just to be safe.  my father has multiple sclerosis, and as long as i can remember ive known the early symptoms, just in case i begin to get it, because there is a possibility that i am at a higher risk cause of genetics.  but either way, keep your head up bro.