 [ Symptoms ] i am female and menstrating feel like i need to pee but burns when i try symptoms started 3 hours ago [ Disease ] a hot flash does not cause a loss of consciousness but people can simply faint syncope anytime and for a variety of reasons since this is unusual for you it would be prudent to discuss this incident with your medical provider    someone who knows you your medical history and someone who has the ability to examine you and order any appropriate diagnostic tests