Torn meniscus, week after, I have a sore calf and cramps in my calf & thigh, and my leg is swollen, is this normal? Are these symptoms of blood clot?

No normal. At your age (esp. if you have any other health issues, smoker, diabetes, blood vessel problems) and with the inactivity that comes from this injury, blood clot is on the list of things, as are others. Best to see your doctor for evaluation and if need be, ultrasound to evaluate for clot. Dr R.