I am 55 year old female that is experiencing tingling in the back of my legs and thighs while laying in a reclined position.I exercise regularly, and recently being off school (where I work) for the summer I ve been doing jogging, jumping jacks, excessive squatting in many of my workout classes at the ymca. Normally, I do evening weight, aerobic, or Pilates classes 3 to 5 days per week. So, I am not just starting to exercise.Somewhat concerned any thoughts? Sara L. Hurley Michigan