I am 7 weeks post-op C 5,6-6,7 cervical ACDF. I thought my energy level would be up by now. I am returning to work next week PT but worried I will be too tired. I walk my dog a few times during the day trying to increase my energy but it's not working. I am a 53 y/o that was pretty active prior but I just don't have any energy now. Could it be my age? Any suggestions on how long this might last or ways to help boost my energy levels. Thank you in advance.