Wow, thank you all for the feedback and advice. To reply to a couple of posts together, I've been lifting for many years, and I would consider my form and technique to be quite good. At the time the injury occurred, I was in the midst of a 3-4 month period of ridiculously high demands and stress. The gym has always been an outlet, and I didn't sacrifice any intensity there. In retrospect, I think it's obvious that the stress led to a compromised state that invited a "break". I am massaging with St John's Wort daily and will increase that as well. It's all very frustrating. Thanks again everyone.