From the Menstrual Period to Ovulation (the details you may not know!) When your menstrual cycle begins, your estrogen levels are low. Your hypothalamus (which is in charge of maintaining your hormone levels) sends out a message to your pituitary gland which then sends out the follicle stimulating hormone (FSH).
Medical Definition of SEASICKNESS. : motion sickness experienced on the waterâcalled also mal de mer.
Unexplained weight loss. Definition. Unexplained weight loss, or losing weight without trying â particularly if it's significant or persistent â may be a sign of an underlying medical disorder. The point at which unexplained weight loss becomes a medical concern is not exact.