Wierd spring/ vibration feeling from inside the watch?

Former Member
Former Member

So I have been using the Fenix 5 for about 8 months now and recently I discovered that when im tapping the edge of the glas ( only left side ) with my finger  I am getting a wierd spring/vibration feedback from insade the clock. Im sure that it wasnt like this from the beginning. 

I have been using the watch normaly, never droped it or exposed it for any force that´s out of the ordinary.

Any idea what could cause this or how to fix it?