Um Hi. I've Been Feeling Fatigued The Last Week Or

Um Hi. I've been feeling fatigued the last week or two. Faint at times. My has been normal. It started around the time I started taking a new multivitamin although I've taken them for months and no fatigue symptoms before. My ear has been bugging me two for a few weeks though didn't take antibiotics, just over the counter polysporin for swimmers ear. I am 40. I'm the same weight I've been for several years. I haven't hit menopause. My routine hasn't changed.