Just like artists, the programmers, coders, developers all design and create new things that didn't exist before, and no 2 programs or applications or completely functioning code will be identical for anything other than a fizzbuzz type test.
So it is natural for the creatives to experience burnout and falsely interpret that as having lost interest in our craft / art. I went through this too at a fairly young stage in my career as I had accomplished a lot in 5 short years. I had the pedigree and training -- internship at Magnum Photos in New York -- so I tried being a War photographer like my Grandpa and traveled to Iraq in 2008. 1 week in there and I came running back. It was a fairly freaky experience.
You think you are there to document something big and consequential to the world and initially it is exhilarating leaving the cube and CRUD applications, but all it is for most part is an online newspaper or blog paying you a few $ per shot. Totally not work the risk. Plus the Radical Islamic Jihadis (ISIS) crossed a new line and started kidnapping and beheading journalists.
I also realized I didn't truly have the stomach for it. Imagine actually being on the scene at 1 of these photographs, and having the courage to shoot, only to find out the media (AP, Reuters) won't publish it. => http://www.theatlantic.com/international/archive/2014/08/the... ( When Kenneth Jarecke photographed an Iraqi man burned alive, he thought it would change the way Americans saw the Gulf War. But the media wouldn’t run the picture.)
Like someone else has stated here, we have it really cushy indeed. So don't get used to it and "itch" for something else. Just work on your side-projects, or learn a new language, or simply stop by to smell the roses and live a little.
Your passion will soon come gushing back and you'll start to wonder why you ever thought of leaving this creative, immensely satisfying craft in the 1st place!