Since i began teaching 8 years ago, i have shifted to running seasonally 5 months out of the year. i am two months into my training schedule, and have begun to have a burning sensation in my right groin while sitting on my rest day. possible cause?

Nerve, tendon, joint: There are many causes of groin pain. Adductor tendonitis and hamstring tendonitis are common causes in runners. If the pain is towards the buttocks, then think hamstring, esp. where it attaches on the ischial tuberosity. Burning is often associated with nerve pain and several nerves are in that area. Finally, hip join pain often refers to the groin but I would expect this to hurt while running.