Updated

Aung San Suu Kyi's doctor says she is worried the Nobel Peace laureate's tour of Europe could take its toll on her health, after she fell ill at a Swiss news conference.

Pyone Moe Ei told The Associated Press Friday in Yangon that Suu Kyi's "lack of rest and her extremely tight schedule are very worrisome."

The 66-year-old opposition leader vomited at a Thursday news conference in Bern, Switzerland, shortly after saying how exhausted she was from her trip the day before.

Suu Kyi's doctors say she has low blood pressure and gets motion sickness easily but has no major health problems.

Suu Kyi had similar episodes with weakness and vomiting during a rigorous campaign for Parliament earlier this year.