What causes muscle fatigue in the legs and arms?
Patient: My husband (55 y.o.) started experiencing muscle fatigue in arms/legs two months ago. It has progressed from arms and legs to head to toe, including needing to exert increased effort to speak, breath and swallow. Symptoms are mild in the mornings and increase through the day till he feels totally exhausted in the evening and describes feeling like every move he makes is through chest deep water. He denies any pain or weakness. He also complains of occasional light tingling and slight numbness of his lips. All blood work results are normal. Doctor: Hello,I have studied your case and I think that he might be having vitamin D and calcium deficiency along with low salt in the body. I would suggest you to get someblood test for him.It includes vitamin D3 , and serum B 12 test along with blood sugar and thyroid testing. If there is deficinecy of any thing then he needs supplementation. he should take plenty of salts and electrolites in diet with green leafy vegetables.   I hope this answer will be useful for you. Let me know if there is any other followup questions.thanks