My gold play went nuts. Should I cash out?
Can't tell you if you should cash out. But if you have significant gains, it's probably prudent to peel off some of those gains.
Can't tell you what will happen in the short or medium term, but long-term I would guess that whatever action we are getting today in markets is an over-reaction. Brexit IS NOT the end of the world, as the political elites would like everyone believe.