Yes! Probably more you than perhaps others! Flexibility is SUPER important and it worries me that you can barely touch your knees. That is usually a sign of super tight hamstrings and a very rigid back which probably goes with some lower back or shoulder/neck pain as well as knees. Start slowly. On all forward bends, put a few blankets underneath your tailbones to tilt the pelvis forward and keep the back straight. ALWAYS bend from the hips. Keep the back STRAIGHT. Use a cord placed in the arches of your feet to help bend forward. You might also try some Yin Yoga to speed up your flexibility.
Goode Yoga 