potassium, calcium, sodium, magnesium, vitamin B complex, or vitamins
B1, B3, or B6 and Vitamin D. Get your kidney function
, parathyroid gland function
and adrenal function tests done because these affect the electrolyte balance in the body. Stress, alcohol, caffeine and fatigue all cause similar symptoms.
Since I cannot examine you and know other related conditions you may be having, nor is a detailed history possible on net, I have listed the various possibilities that should be looked into.