Hi it does sound like you strained something in your back, there is a muscle that wraps around the chest from the back. I have had that pain when I strained a back muscle and it wrapped around to the front.
Saying that do you have more information about your status? i.e. do you know that status of your liver? how damaged is it? Do you have your viral load? how long you may have had HCV? Are you thinking of treating or do you have more time? Just trying to think of questions that others will ask when they come along
Oh ice on back and front 20 minutes on and off and heat can help as well.
I am not a doctor just a fellow patient trying to help
Hey there! I am really happy that you got some relief, take care, be nice to yourself, rest, Dee