I've never been able to touch my toes. Been a total slob over the past year or so, but have started couch to 5k. Years ago, I would go to the gym several times a week, but all that fitness and stamina have gone. Trying to get it back. Stretching really helps and important to prevent injuries but I am so inflexible. Always have been. Can I improve it? Just stick with yoga and pilates, and hopefully I'll get better? Should I be doing anything else?