无病自灸 wúbìng-zìjiū
[bring trouble to oneself by making uncalled-for moves] 没有病而自行针灸。比喻无缘无故自讨苦吃
没有病而用火艾烧灼穴位。比喻自寻痛苦或烦恼。
《庄子.盗跖》:「柳下季曰:『跖得无逆汝意若前乎?』孔子曰:『然。丘所谓无病而自灸也。』」
英语 lit. to prescribe moxibustion for oneself when not ill; to cause oneself trouble with superfluous action