Kidney Infection And Irregular Menstruation

Hi,doc.i am a girl of 24 yrs.i was diagnosed of kidney infection in 1999 when i was 14 yrs old.since then i never felt it again.in 2002 when i am 16yrs old i starte menstruating,my periods was normal until i joined a football team in my school in the yr 2005.since then it has completely gone abnormal.sometimes,i miss my period for 7months.i have gone through many medications yet no change.i am married now but have not conceived.am afraid because of recent i started having strange feelings in my body,stomach pains and frequent headache .could it be that same kidney infection?could it be that it was cure the very first time it was diagnosed because i have not been diagnosed of it again but instead typhoid and malaria kept coming up each time i go for diagnosis.could the previous kidney infection i had when i was 14 be the cause behind my irregular periods now that i am 24.pls i am afraid doctor help me.