Listening to my body...again

after almost a month of not going to the gym I have to be very careful with the work outs I will do. I went to a combat group exercise and dance exericise. with 45 minutes in the treadmill with no running. I don't think I can run at this time. I took it very light first, in the next few trips to the gym I must slowly get to the way I used to be. I certainly put some pounds with the absence of workouts.