Speaking on BBC's World Service's World Football programme, Schurrle explained the reasons for his loan move to Wolfsburg while hinting that he could be on the way out at Chelsea at the end of the season.
"I had the World Cup which was very perfect for me and the start of the season was good as well," he said.
"Then there came a little bit of a period for me where my body didn't feel very good, I was not clear in my head and I didn't have as many good moments for Chelsea.
"I wanted to come back to the Bundesliga, I wanted to feel a little bit more in the team and to get a bit more playing time.
"I love Chelsea still, I'm not frustrated, it was a great experience."