i am married and wanted to ask whats the problem with me i have foul smelling odor in the vagina and sometimes a little yellow discharge but i think it increases than its mormal dischage, i feel a little pain in my lower left side under my ribs and sometimes at the back. Do i have an infection or u.t.i?What will i do? before when i had u.t.i. i took cotrimaxozole 800mg should i take it again? whats the cause of my sickness?