Awk symptoms and conditions

i had mine since 2004 and I thought it was great, I haven't had a period for over 3 yrs. just the pms , after insertion i had the cramping and then my light period went away completely but now in 2008 still now period but a spot that represents my periods and added to my fake periods yeast infections every month for four months now, i went to my doc a 3rd time and he said im having hormonal imbalance that might be causing the yeast infections and it might clear up on its own the 3rd one did clear up in about a week and half so this month guess what i had another yeast infection which makes 4 , so i have a appt me with my reg doc . besides the yeast infections, i have a white discharge , depression, fatigue .