I have been dealing with a calf issue since the end of August. Initially it was relieved by stretching but stupidly I continued running on it (I was training for the Marine Corps Marathon) as it was not bothersome running only when I wasn't. I didn't take my own advice to stop running until I was pain free for a solid week. Fast forward to Oct 4th, after seeing a sports Chiro, I have been told that my calf issue is related to weak glutes (very common for women) and tight hip flexors--the calf is just where the kinetic chain broke down. This is why it's very difficult for any of us to tell you how to treat a pain...more times than not, the source of the pain is NOT the cause of the pain.
I have started an extensive rehab program using Coach Jay Johnson's MYRTL routine, Lunge matrix routine, in addition to using the Trgger-point grid roller. I had to defer my MCM entry until next year, however, I am back running without the tightness.
My take, pain is our body's way of telling you that something is not right and that finding the source and cause of pain is the answer.
I wish you well!