<human>: Can you succinctly summarize the text in 1-3 sentences?

I am a 22 year old, married female. My husband is the same age as me and I love him very much. We have a great relationship in every aspect except sex. 

I didn't become sexually active until 18, before that I very much had a sex drive and know what it felt like to be aroused, but it has been about 4 years since I have felt any kind of pleasurable arousal. My body prepares for it, but I literally don't feel anything. My interest in sex is incredibly low and it now feels pointless and reminds me of my sexual inadequacies. We have tried different positions, more and varied foreplay but nothing has seemed to work. I feel myself pulling away from sex more and more.

I am so disappointed with my sex life because I always thought I would enjoy it. I feel like I could go the rest of my life and never have sex again and be just fine, but I really want to enjoy it and not having this aspect is very stressful and depressing. I want to be able to enjoy it for myself and for our relationship. We are having less sex with longer intervals in between and I am worried. My husband is very kind and patient with me, but he has a normal sex drive and I want to be able to keep up with him. I don't think I have ever had an orgasm before and I can't seem to turn myself on with books or my imagination. 

All my blood work is normal, I am a healthy person, I'm a healthy weight and I exercise. I had a Mirena IUCD put in 1 and a 1/2 years ago.

Do other women feel this way? Is there any advice anyone can give me?
<bot>: I have very little interest in sex and don't get aroused anymore. I want to change this, but am unsure of how. Advice?