Is it normal to have voices in my head?  Actually, yes.  It does not mean you are crazy or need medication.

From a separate interview about her backround:

Jon Ronson: Let’s back up a minute and talk about what happened to you. Whenever I tell anyone your story, I always begin with a bit of a narrative flourish: You are just a regular student somewhere in England. And then one day you got out of bed and … what happened?

Eleanor Longden: Well, essentially what happened was that — although I couldn’t possibly have known it at the time — my whole life, and the life I’d expected to have, was about to change beyond all recognition. This brewing catastrophe began in a relatively mundane way; the appearance of a single, neutral voice that calmly narrated what I was doing in the third person: “She is going to a lecture,” “She is leaving the building.” I was startled at first — very shaken. It was quite a weird sensation. But I got accustomed to it pretty quickly, because it was so unthreatening. I knew what voice hearing was, of course, but this didn’t seem anything like the types of voices you read about in the media or see in films — frenzied, violent voices that drove people to acts of destruction. And after a while, I even began to find it quite reassuring. Owing to a series of childhood traumas, I was a very confused, anxious and unhappy teenager, and the voice started to feel like a reminder that in the midst of crushing unhappiness and self-doubt, I was still carrying on with my life and responsibilities. I wondered whether other people had similar commentaries but just never talked about it. Also, although this took a bit longer, I began to feel that the voice was very closely connected to my sense of self, in that it reflected emotions I couldn’t express. So, for example, if I felt angry and had to hide it, then the voice would sound frustrated. It began to seem vaguely fascinating, creative even – how my emotional world was being externalized through this voice.

Jon Ronson: So this story is about to get hugely worse. But before it does, let me ask a question. I remember when I was a kid once or twice hearing a kind of weird babble of voices in my head. Like there was a party going on and a whole bunch of people were all talking at once, and I couldn’t make out what anyone was saying. It didn’t bother me at all. I think a lot of people have had a similar experience: hearing a voice just as they’re falling asleep, or whatever. Before everything got worse for you, is that the kind of thing we’re talking about? Something as innocuous as that?

Eleanor Longden: That’s a really interesting question, because what research actually suggests is that voice hearing (and other unusual experiences, including so-called delusional beliefs) are surprisingly common in the general population. The recognition of this had led to the popularity of “continuum models” of mental health, which suggests different traits and experiences are all part of human variation — not strictly categorical in terms of “us and them,” “sane and insane,” “normal and abnormal.” However, I do think life events play a vital role in determining who becomes distressed and overwhelmed and who doesn’t. This might include experiences of abuse, trauma, inequality, powerlessness, and so on, but it can also include the immediate reactions of the people around you. If you don’t have people who will accommodate your experiences, support you, and help you make sense of what’s happening, then you’re much more likely to struggle.

Jon Ronson: So when did you first notice that the voices were becoming less threatening? Can you remember a moment when the voices became noticeably nicer?

Eleanor Longden: It happened gradually — and some voices took longer to change than others. But primarily it was when I stopped attacking and arguing with them, and began to try and understand them and relate to them more peacefully. It was about putting an end to the internal civil war I mentioned earlier, because each of them was part of a whole: me! I would thank them for drawing my attention to conflicts I needed to deal with. I remember one very powerful moment, several years down the line, when I said something like, “You represent awful things that have happened to me, and have carried all the memories and emotion because I couldn’t bear to acknowledge them myself. All I’ve done in return is criticize and attack you. It must have been really hard to be so vilified and misunderstood.” There was an immensely long pause before one of them finally responded: “Yes. Thank you.”  The full interview is here at The Guardian.

Related Article:  The Voice in my Head 

You may also want to check out the free trial sessions of the Self Mastery course which can help you understand and calm what goes on in your mind.