A sharp calf pull after stepping off a tram can alter much more than the next few steps. You may shorten your stride, avoid stairs, or put extra weight through the other leg.
By the evening, the knee, hip, or lower back may feel uncomfortable as well.
A footscray physio will usually begin by asking when the symptoms started, what makes them better or worse, and which activities you need to keep doing. That history helps place the painful area within the wider pattern of how you move, rather than treating the spot in isolation.