This is a Hepatitis C site, so, you may not get many replies without having had an HCV positive result.
I would hazard a guess that the hospital will be doing more tests and scans? I had a blocked carotid artery (on one side only >90%) and a series of mini-strokes, after which a successful operation. The other side was <40% blocked which, I was told, was 'about normal' for my age. As far as I'm aware carotid artery is not necessarily related to HCV.
I'm thinking that you were given the full range of blood tests to get an overall picture of your health.
You say your blood tests have 'excluded" viral" hepatitis however with some of those lab reports it would seem there is possibly something "Liver specific" going on as some of those markers are significantly elevated.
Very often (however not always) when AST is higher than ALT it may be alcohol related .
Possibly go to the forum I linked below for some further answers on that and as far as the heart issues only your physician would be able to discuss this with you..
Best of luck