Have you ask yourself why you invested in the first place, this goes for any investment. Would you still invest today? If the answer is yes do nothing. If the answer is no consider selling.Currently deciding whether any point still. Holding what I hold.
I've tried selling before at an expected dip and got it wrong more than right.
Mainly sticking to index trackers is a lot easier..
Probably went a bit early on this years ISA allowance though. I've been buying gilts instead recently in the GIA.