This fall I have been practicing and teaching more than I ever have before. During the past week, I noticed my knees aching a bit and I wondered if I have been doing too much yoga. Is there such a thing?
I believe that, yes, there is too much yoga, if you only do one type of practice. I genuinely do not think there can be too much if you incorporate different types of yoga into your daily routine. For example, when I noticed that my knees were starting to ache, I took myself to a restorative practice and chose to take a few days off from my regular vinyasa flow practice. When I was becoming frustrated because I still have yet to do a headstand away from the wall, I decided to try Yoga Nidra in an attempt to let those frustrations dissolve.
So, to answer my own question, I think that when one type of yoga is hurting some aspect of your physical or emotional well-being, then choose to draw your practice from another aspect of yoga. Above all, never forget the Ashtanga Yama of ahimsa, non violence towards all living beings, including yourself.