my daughter who is 41 small frame, sufferers from fatigue  when she works and gets very tired she get Jarrings in her head that are quite frequent. she has head aches and complains of her vision, she also is suffering from pain the the kidney area,  at one time they thought she might have kidneystones   I think it has something to do with her adrenal
Welcome to Chat Doctor. Easy tiredness with headache indicates multivitamin, protein deficiency. Get her eye check up also to rule out any vision abnormality.Otherwise, start B12,folic acid,d3,minerals, other supplements with protein milk powder. Kidney pain should be ruled out by CBC, urine and USG abdomen. Start treatment accordingly. Consult physician for proper diagnosis and medical management.