Mirena and present day

After almost a year to date....I am experiencing a lot of the side effects lately that almost everyone has posted. I have two beautiful daughters and a loving husband. Here is my story. I had it put in Oct of 2008. I had not been on BC before b/c we were purposely starting a family. Well, I had it put in because I ended up getting pregnant for the 3rd time after having my 3month old (second child). Being pregnant so soon after giving birth was such an emotional roller coaster and caused a lot of stress for us both. Unfortunately I ended up having a miscarriage after 3months. When that happened, we decided that I needed an effective BC that I didn't have to think about everyday because I already had a 3month old and a 20 mo running around. This is what led us to getting the Mirena. So NOW that I stumbled upon this forum, I realized that I had been through a lot of the side effects that others have. I thought it was "normal" to go through what I did. At times, I thought it was my imagination. And now, I wish I would have spoken up about it sooner. I bled for 6 months straight thinking that this is what I had to go through to have years of light or no periods at all. It def put a wedge in my sex life with the hubby and not to mention my libido has been next to nothing. After the first 8 weeks of insertion, my hair fell out, but I blew it off because I thought it was due to the stress of the kids and the miscarriage. It fell out so terribly that I had to get a new hair cut to even it out. Fast forward to May of 2009, finally, my period is starting to last only 7 days and not like 3 weeks. Next thing you know, we are smooth sailing. Libido hasn't moved up a notch, but at least I knew when my period would come and how long it would last so that my hubby and I could have intimacy for once. Everything was fine all summer all the way up to last month (Sept 2009). Present day, now all of a sudden, my period has not shown up. Last time it came was 6weeks ago in Sept.. Kid you not, I'm having all the same symptoms of all my pregnancies. All last week including today I have had the following symptoms:
-Extreme dizziness with nausea
-Severe abdominal pain-like a sharp piercing pain on the left side
-lower back pain every single morning
-nose bleeds everyday, sometimes twice in a day
-increased appetite
-Extreme fatigue like I need to take a 2 hour nap
-adrenaline flashes
....So, after 7 days of this I called my OB today since she was on call and asked if I should go to the emergency. She decided that she wants to see me at her practice first thing tomorrow morning. In the meantime, she asked me to take a hpt. It was negative. But guess what, I'm not convinced. The 3rd pregnancy where I had the miscarriage...you remember right? Well, I took a pregnancy test the week before I was supposed to get the Mirena in b/c it had to be put in before my next period, well, that's when I found out I was pregnant...at the doctor's office! My hpt test said negative. So anyways, I am nervous and anxious to get to the bottom of this. If I am not pregnant, I will probably have it removed. It has caused so much unwanted change in my life-loss of sex drive, irregular bleeding, moodiness to the point where my husband thinks I'm psycho at times....you name it. If I am pregnant, then I will certainly have more worries than I ever have had before.