KEGATALAN KEPUTIHAN

Hi mummies , i got this discharge ever since my first trimester, dlu ad discharge xdk bau xdk gatal skrg dia bau mcm fishy and itchy around my labial, kenapa bleh jdi mcm ni is this normal? Bila kat tgn dia texture berair mcm lotion but kena kat panty liner dia jdi yellowish greenish xterang banyak sehari kluaq bnyk. What is the punca?