Difficult to say without examination.
Changes in sensation and headaches can be indicative of a neurological condition. Peripheral neuropathy - caused by metabolic diseases like diabetes, thyroid or B12 disorders - can be ruled out. The headaches can be evaluated with imaging studies like a CT scan or MRI. An EMG or nerve conduction study can also be considered to evaluate for peripheral neuropathy.
These options should be discussed in conjunction with a neurologist.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.