Is it normal to experience twitching in upper lid few weeks after tear trough filler?

Upper eyelid twitching is quite common, and it is not related your recent dermal filler. An eyelid twitch is more of an annoyance but if it persists more than a few weeks make sure you visit your GP for them to examine you. Eyelid twitching often settles on its own. Hope that reassures you.