I was on doxycycline for chlamydia got retested and was clean. however i didn't take the last 2 pills and have symptoms again. did it come back?

Probably not: Missing just one day of doxycycline isn't likely to make any difference. Chlamydia causes the same sorts of symptoms in women as many genital infections, like yeast, bacterial vaginosis, and many more. Best to recheck with your doctor, and to be completely safe, have a follow-up chlamydia test (at least 3 weeks after finishing treatment, or it might still be positive from the original infection).