QAnyone with PMDD or Depression please help!!?

I've been dealing with pain and mood swings/depression for years. I have yet to be diagnosed and it is not only making me crazy, but everyone in my life crazy as well. I had an IUD put in 8 years ago. A few months afterwards, I started having labor like pains every month. I was told that I had IBS. I suffered for years and just dealt with it. Recently, I had a vaginal ultra sound, which showed that my IUD was in a little crooked. I am scheduled to have surgery to have it removed, and also to see if I maybe have endometriosis. My pain leads to severe mood swings and also depression. I literally feel as if I am going to lose my mind. I can't deal with my kids, and my husband can't stand me half the time. My friends even get annoyed with me. I get headaches on and off through out the month, my back hurts, I get muscle aches, and I don't want to be bothered by anything, and sometimes don't even want to get out of bed. I never feel good. When researching PMDD, I've discovered that I have every symptom listed, except for suicide. I don't know anyone other than myself that has these problems. My family has a history of depression, but I feel as if mine only comes once a month, but lasts for 2weeks. It has interfered with my job and social life. I gain about 10lbs every months as well, and then lose it after my period. It is ridiculous how I have different sized clothes that I have to wear half of the month. I am always telling everyone how I am just a useless piece of crap for 2 weeks out of every month. What a way to live right. My doctor wants me to have a psyciatric evaluation after I have my surgery ruling everything else out, but I HATE drugs. I fear what I will have to take, and was just hoping that there was someone else out there who has the same problem and symptoms, who could maybe offer some advice and support. I would appreciate any input anyone has to offer. Thanks so much.