Scarey Shit Sometimes
in the private sector if a doc wants to do liver testing usually it's because u are on a med that might irritate the liver.........are you?
if you are not and he notes u might be 'less than natural' he might be wanting make sure your liver is OK with what u are...
any stress can bring out Shingles....emotional, physical, injury,fatigue, lowered immune system as others have said.....nice thing is it's very treatable these days
get well soon man