What Causes Intense Fatigue, Tingling Sensation In The Feet And Leg Pain?
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Detailed Answer:
I read your question carefully and I understand your concern.
Generally the thyroid should be the first suspect in a situation such as yours. However since you say to have checked levels recently and they were fine it is less likely to be the cause and other possibilities should be considered.
I agree that if you are to consult a specialist a neurologist should be the first one to consider for your chronic fatigue and abnormal sensations. So it is the right step. Of course it is advisable that your GP prescribes some routine blood tests prior to that visit so that the neurologist has them at his disposal and no time is lost in waiting for them. By routine tests I mean blood count, erythrocyte sedimentation rate, c reactive protein, HbA1c, liver and kidney function, electrolytes, rheumatoid factor and antinuclear antibodies. Perhaps you've already done some of them along with those vitamin and thyroid levels, in that case not necessary.
I remain at your disposal for other questions.