Vivoactive 3

Last night I charged my watch and then put on to go to bed.  It was working fine.  When I woke this morning, there was no display.  Green lights at back still worked.  I put back on charge incase it lost charge during night (never has before).  After about 15 mins I checked it and it was getting very hot whilst on charge.  Once again, this had never happened. 

I have tried to hold down button - nothing.  Connected to PC - nothing again.

It is over 2 years old.  Anyone else had thes issues?  Is it time for new watch?  I was expecting it to last a little longer than this I must say.

Any feedback would be appreciated.

Thanks