In medicine, a nocebo (Latin for "I shall harm") is a harmless substance that creates harmful effects in a patient who takes it.
Basically, you think "I'm taking medication, that could cause side effects," that thinking it and of itself can causes side effects!! It's like a reverse placebo.
Completely and totally incorrect.
http://en.wikipedia.org/wiki/Nocebo
In medicine, a nocebo (Latin for "I shall harm") is a harmless substance that creates harmful effects in a patient who takes it.
Basically, you think "I'm taking medication, that could cause side effects," that thinking it and of itself can causes side effects!! It's like a reverse placebo.
Also see:
https://www.youtube.com/watch?v=O2hO4_UEe-4 (watch this short video, it give a great rundown on the nocebo effect, including examples)
and people are thinking they are getting specific side effects....at least they are searching about them.
http://i.imgur.com/lskvrtI.png