(CNN) German Chancellor Angela Merkel has been seen shaking in public for the third time in less than a month, raising further concerns over her health.

Merkel, 64, trembled as she stood next to Finnish Prime Minister Antti Rinne during an appearance in Berlin on Wednesday.

Afterwards Merkel said she was "fine," adding that she has been "working through some things" since she was first seen shaking during a June 18 ceremony with Ukrainian President Volodymyr Zelensky.

"I am working through some things since the military honors with President Zelensky which do not seem to be over yet, but there is progress and I have to live with it for a while," Merkel revealed. "But I am very well and one does not have to worry."

A spokesman for the German government told CNN that discussions with Rinne were "going ahead as planned."