My husband&me r havin protectd sex(with condom)only.we never had any other partners.stil we both suffer frm recurrent yeast infctns.any possible stds?

Unlikely: Yeast is not stds. Try some acidophilus. See your doctor to get tested to be safe.

Candidiasis: You might try using an oral antifungal and treating through one full menstrual period, and have your husband use an antifungal cream on his penis, or on the condom to be sure that it is not the source of reinfection. This is not an std, in the sense that it can be acquired without sexual contact and usually is.