heavy periods

A couple of things to think about. Fibroids sometimes predispose to heavier periods. I hope addressing these helps.
Are you taking a non-steroidal such as motrin (ibuprofen) or aleve (naprosyn sodium) or aspirin for pain from the GBS? These can lead to more bleeding potentially. You could try change to tylenol.
Finally, are you by chance taking lisinopril for high blood pressure? One of the side effects of lisinopril is a persistent cough.
WithHope for cure of these diseases.