So, as itri know, I'm training for a triathlon. I've done some running in years past, but not more than 3 miles at a time, a few days a week, and it's been a couple years. Sunday I tried to run after a long bike ride and my knee gave out. DH says it IT band, and stretches will help, but it's sore again after bike riding again today. (I didn't even try to run). Yikes...I'm a little nervous and discouraged cause training was going well. Any ideas?