 [ Symptoms ] can taking biotin cause yeast infections  i have been taking biotin 5000mg once a day for the last 3 weeks since i have been taking it i have noticed 2 things my urine smells extremely bad and i have been experiencing symptoms close to yeast infections burning when urinating i notice it happens after i take the pill in the morning would it help to take it at night   i am taking it as a routine vitamin for hair and nails not medically necessary [ Disease ] hi the penicillin could have upset your vaginal natural balance it will do that because of this you may now have bv bacterial vaginosis its just one of these things some women can get can be just the once or can keep re occurring so its either of to your doctor for a test and meds or an stdgum clinic they will do the same thing your ok its not an std but the clinic will help you or you can google bv and sea salt bv and boric acid bv and garlic these are just some ways you can find natural help now it could be this that is chucking the rest of your body out of sync and giving you the tiredness as for your miscarriage perhaps a d&c would have helped but you could still have it done now try seeing a doctor or going to a baby clinic that has a doctor there do hope this helps good luck