Just like djembe heads, not all djembe tuning rope is created equal. Low quality rope on a djembe can truly make an otherwise excellent drum sound sub par. When selecting a rope-tuned djembe, make sure that the rope used is internally braided and non-stretch. This allows the tuning to stay in place.
If multivitamins make you feel exhausted, just stop taking them. But I think you were just drowsy an hour after taking it, which is an effect of some multi vitamins but my mom is taking One a day for women, it boosts her energy, she doesn't get tired that easily. Maybe you just have to try another multi vitamins,
Vitamin B12 also helps prevent a type of anemia called megaloblastic anemia that makes people tired and weak. Two steps are required for the body to absorb vitamin B12 from food. First, hydrochloric acid in the stomach separates vitamin B12 from the protein to which vitamin B12 is attached in food.