Palpitation is an awareness of the abnormal beating of the heart. It may occur in people with or without heart problems. Heart palpitations when lying down is not a common occurrence and can be caused by various factors.
Flat feet occur when the normal foot arches have partially or completely collapsed. When the foot is put to the ground the inner or middle side of the foot comes down to the floor rather than remaining raised. This can cause the whole foot to roll inwards (this is called over-pronation).
Plantar fasciitis is usually caused by straining of the plantar fascia. 1  This occurs by wearing shoes like flip flops that give the foot little to no support. It can also occur due to weight gain, flat foot, increased activity, overuse and arthritic and orthopedic conditions such as: 2  Accessory navicular. 3  Osteoarthritis.