Yoga... AH!

A friend of mine gave me a yoga center trial card for 3 free sessions. I had plans to go try out every day of this week. I went on Monday and I could hardly get out of bed the next day. I wanted so much to try their pilates class on Tuesday, but I guess that will have to wait till next week. After I recover. I thought I had done the stretches only to my limit so why was I aching everywhere? Here pain, there pain. I think I need "Salonpas". By the way, I can do the above!