Hello Ma'am. Very Good morning. I'm Dr.Yogesh Kr Sharma. As per your history, you are suffering from Vaginosis,  means infection of Vagina,  which could be bacterial or mixed, I mean Fungal and bacterial both. Foul smell is a result of the infection. I will advice you to don't indulge yourself in sexual activities,  because you can transmit the infection to your male partner, in that case you both have to take treatment. Painful intercourse is a resultant effects of infection. Ma'am don't delay, it a minor health problem,  which can be cured by the course of 5 days antibiotics. Kindly meet me at practo chat if you are satisfied with my advice. Take care and have a hasty recovery. Bye.