Myanmar opposition leader Aung San Suu Kyi cut short a press conference in the Swiss capital Bern on Thursday saying she was suffering from exhaustion. Suu Kyi, on her first visit to Europe in 24 years, apologised after vomiting during the press conference in the Swiss capital, saying she was \"totally exhausted\" from travelling. \"I am not used to the time difference,\" she told reporters in Bern after holding talks with Swiss Foreign Minister Didier Burkhalter. Suu Kyi, who is about to turn 67, flew to Geneva late on Wednesday and embarked on a full day of public engagements on Thursday at the start of her landmark European tour. The democracy icon gave a speech to the International Labour Organization conference in Geneva, then held a press conference and later met ILO officials before travelling to Bern. Suu Kyi returned to her hotel after halting the press conference and it was not clear whether she would attend a scheduled dinner with President Eveline Widmer-Schlumpf. She is travelling to five European countries including Norway, where she will finally accept the Nobel Peace Prize she was awarded in 1991. Suu Kyi will also address Britain\'s parliament, receive an Amnesty International human rights award in Dublin from rock star Bono.