<s>[INST] My right foot bends inside when i walk. My walking shoes are bent on the inside part of the foot more from heel to arch. My arch pains if I wear flat footwear. On an occassion if I wear shoes I have to insert insoles. Even at home a little heeled flip flops work for me. If I stand for long my heel and arch hurt. What is the cause? [/INST] You seem to be suffering from flat foot / flail foot,As you say you need to use insole to reduce pain, so get examined by a proper orthopaedic Surgeon like me to know the problem & get treated with the correct foot wear, whi=ch is need of the hour. corrective shoes will solve your problem </s>