Metatarsalgia – Pressure overload under the ball of the foot causing burning/aching with push-off. 
Morton’s Neuroma – Irritated nerve between toes causing burning, tingling, or “pebble in shoe” sensation. 
Bunions (Hallux Valgus) – Big-toe joint drifts toward the second toe, leading to rubbing, swelling, and shoe pain. 
Hammer/Claw/Mallet Toes – Toe deformities causing corns/callus from shoe pressure or tendon imbalance. 
Sesamoiditis – Inflammation under the big-toe joint from repetitive loading (running, jumping, forefoot shoes).