Plantar Fasciitis: This condition is characterized by inflammation of the plantar fascia, a band of tissue that runs along the bottom of the foot. It typically causes pain in the heel that is worse after rest and with activities such as jumping, making it the most likely diagnosis given the symptoms.

Achilles Tendinitis: Inflammation of the Achilles tendon can cause pain in the back of the heel, which may radiate to the bottom. Activities like jumping can exacerbate this condition.
Heel Spur: A bony growth on the underside of the heel bone, which can cause pain when walking or standing, especially after rest.
Fat Pad Atrophy: Thinning of the fat pad under the heel can lead to increased pressure on the heel bone, causing pain, especially with weight-bearing activities.

Fracture (Stress or Traumatic): Although less common, a fracture in the heel area could present with similar symptoms and would be critical to diagnose early to prevent further complications.
Infection (Osteomyelitis or Septic Arthritis): Infections in the bone or joint of the heel can cause severe pain and are medical emergencies.
Tumor: Both benign and malignant tumors can occur in the heel and may cause pain, especially if they impinge on surrounding structures.

Rheumatologic Conditions (e.g., Rheumatoid Arthritis, Psoriatic Arthritis): These conditions can cause heel pain among other symptoms, but are less common causes of isolated heel pain.
Nerve Entrapment (e.g., Tarsal Tunnel Syndrome): Compression of nerves in the foot can cause pain, numbness, and tingling, but is a less common cause of heel pain.
Bursitis: Inflammation of the bursae around the heel can cause pain and swelling, but is less frequently encountered compared to other causes of heel pain.