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,
If these people are under treated they feel really tired. If they are also vitamin B-12 deficient, the feel really, really tired. Tired people drink coffee. According to a paper published this past March, coffee decreased the amount of thyroid hormone absorption by about a third.