Since you seem to be offline, i will leave a response here which we can discuss later on.
Well from what you are describing can be due to a number of conditions. the first one which comes to mind is that you could have a problem with the nerves of the feet. This is known as neuropathy and can present in a number of ways including the sensation of being scratched, tingling, burning or even numbness. This can be diagnosed on a clinical examination and with the help of a nerve conduction study. The treatment can be with lyrica or treating the underlying cause which can be due to vitamin deficiencies, diabetes, autoimmune disorders or even thyroid disorders among many others.
Another cause of this can be related to the vessels in the lower limbs and the feet. Peripheral arterial disease can present in this manner as well and can cause problems like cold feet, tingling, numbness, pain which worsens over time. the diagnosis is made with the help of a doppler ultrasound of the legs.
Lastly, it is possible that this sensation is the sign of early plantar fasicitis which can later on progress to such an extent that the first step on the ground may be excruciating. This would be diagnosed ona clinical examination and then treated with orthotics and steroid injections.
So i think you may have one of the above three conditions however all are treatable provided they are diagnosed in time and i would suggest that you see your PCP and have him consider the above possibilities.
Do you have any more questions?
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