hello,
A tendon is the fibrous tissue that attaches muscle to bone in the human body. The forces applied to a tendon may be more than 5 times your body weight. In some rare instances, tendons can snap or rupture. Conditions that make a rupture more likely include the injection of 
steroids into a tendon, certain diseases (such as 
gout or 
hyperparathyroidism), and having type O blood. 
Although fairly uncommon, a tendon rupture can be a serious problem and may result in excruciating pain and permanent 
disability if untreated. Each type of tendon rupture has its own signs and symptoms and can be treated either surgically or medically depending on the severity of the rupture
vertical indent in your calf muscle is due to the trauma you had couple of months back.
torn tendon in the upper calf is rare but can happen. an 
mri would definitely help not only to assess a torn tendon also the 
soft tissue and the joint to rule out any associated 
injury.
avoid waking too much. avoid bearing weight on the injured leg. using a clutch can be helpful no doubt. avoid anything that puts too much work on your leg.
i hope i have answered your query.
take care