hi, I have had mirena in for about3 months and I am so tired, dizzy, and I can hardly get out of bed. I thought it was the zoloft, but that had never done that to me before so my primary dr switched me to effexor. I am still tired. and depressed. I am 99.9% sure it is is the mirena. I feel sleepy all the time and and I am so fed up. does any one else feel weak and loss of energy?