I have slight discomfort after my chin implant, should I go see my surgeon?

It is a good idea to discuss your concerns with your surgeon. However, in general, occasional soreness with animation is common in some cases. Infection is unlikely as most infections occur within the first few weeks.

I recommend following up with your surgeon. If necessary, you have 2 options:
1)  Get a different implant 
2)  Remove the implant altogether
It is rather easy and quick procedure to place a different implant if the implant is made of silicone.  If you have a Gortex or other type of implant, I would be more difficult to place a larger implant.  
I hope this helps.