Question
My left foot has a clicking sound every time I walk bare
feet, but I don't feel any pain. I am curious what this
clicking sound might be. The clicking sound is coming from the bottom of the foot, behind the toes and a little to the left of center (on a line with the ball of the foot).

Answer
Probably an accessory ossicle(a small little bone around 1/4 inch) or the flexor tendon. As the toes move the tendon or ossicle "catches" around the metatarsal joint.
Hope this answers your question
Good Luck
George Tsatsos-Chicago & Elmhurst Podiatrist
Board Certified Foot & Ankle Orthopedics & Surgery
AnkleNFoot.com

Not Med Advice-Just info for all