IUD's PLEASE READ (long post)

Brittany • Brittany • 24 • Tom is my saving grace. I love you <3 6.30.14 <3
Okay so I've been reading about the SKYLA & MIRENA. PLEASE HELP AS BEST AS U CAN! I WANT INFORMATION TO GO TO MY GYNO WITH!!!
*****Please no comments about PARAGUARD I am not interested in learning about it!*****
-
I read that with these IUD's they're placed in the uterus.
-----Does that mean that the hormones don't go through the bloodstream like the pill and shot would?
-----Does that mean infection is more likely?
----- Is insertion of the IUD painful? How long does it take to be inserted?
-
I am bipolar which is a mood disorder. Hormones and I don't always get along. Am on Lo Loestrin Fe (pill) looking to come off it due to combined hormones.
-----Skyla and Mirena are estrogen free. 
------- Does that mean that mood swings are less likely? Less severe?
-
Now if you don't mind can you tell me also your experiences with either or both of Skyla and Mirena.
-
Acne?
Enlarged breasts?
Hair fall out?
Pain?
-
Anything positive and negative would greatly help!!!
-
THANK U!!!