A lot of people say they have right upper quadrant pain with hep c. I started having the pains off and on long before I found out about the hep c. As far as what it means... that's anybody's guess because people with really bad liver problems report that they don't feel that pain, and others with less damage do. I think it is an individual thing.
Have you been tested for genotype and amount of damage yet?
I doubt weed is much of an issue, Alcohol would be much worse!, I get the occasional right side pain but it has no correlation to liver condition.