All I can say is OHMYGOD! I had no idea about all these side effects. I had my son April 4th, 09 and had the Mirena placed October 21st. Since then, I have been constantly spotting, I have headaches, and no motivation to exercise. I have been moody and felt overall like blah. I have noticed some joint stiffness and discomfort in my hands as well as muscle tenderness in my legs. I have not experienced any weight gain or loss at this moment, nor have I noticed a change in hair loss...but will definitely be aware of the possibilities. Well I have a appt. for my follow up, I am going to inform my doctor of my side effects as well as yours, and see if this really is the best option for me. The last thing I want is for this to inconvenience my life when I got it just for the opposite...Good luck ladies!