 [ Symptoms ] can epilepsy or a long seizure cause long term memory loss  teenage girl experienced seizure for at least 20 minutes before getting to er prior events and people in her life she struggles at best to remember seems to be okay short term memory she has generalized epilepsy [ Disease ] trichomoniasis is a living parasite that requires a host human it will not survive in vaseline or other lubricant re infection may be from the same original source another human  sexual partner who has not be treated or the reinfection may represent a failed treatment so you will need to be treated again