ve developed both a vaginal yeast infection and oral thrush.
Antibiotics can mess with the amounts of good and bad bacteria found
in both the vagina and
mouth, which leave the pH/flora imbalanced.
Seconded what 2terrified said - you need to see your doctor and/or OBGYN for further treatment. I would also suggest, if haven't performed already, getting a standard panel for STD/STIs.
In the meantime for relief, you can apply, externally, PLAIN yogurt to the vaginal area.