I have been pretty light headed for about a week. This is also causing me to be dizzy. For about 2+ weeks my lower back on my right side and side area have been painful. Especially after sitting, or waking up. For about two weeks my breasts have been pretty sore, mostly my areola area. I have the mirena IUD and have not had a period for 3 years (my5th year is next year and I am not even 30) I am sexually active(husband) , but took a pregnancy test to be safe and it was negative. I eat regular meals, get plenty of rest and drink water regularly (at least 8, 8 oz a day) what is going wrong with me?