Asked for female, 21 years old from Aurangabad
It is because of your Zumba classes. Before doing cardio you need to strengthen your muscles (leg muscles).
For this. You should join a gym for weight training. Do it 2-3 times a week with at least 48 hours in between 2 sessions. For further details on type of exercise, how to do n what to eat before n after exercise you can consult me.