Should I be concerned about getting sick 2 weeks post op?

It does not sound related to your procedure although upper respiratory tract infections following anaesthetic can occur. This may be viral in nature. I would let your PS know - the query will be whether to start you on antibiotics or not. 

You should always be able to contact your surgeon's office 24/7.  If your surgeon isn't able to be reached, then there should be a system in place at their office for you to talk with one of their partners who is covering their patients if they are unreachable.  While this may just be a "common cold" you should be evaluated for potential infection after the surgery.You mentioned that you traveled.  If your surgeon is out of the country, this makes it much more difficult to find care when you get back home.  You may need to call around to several plastic surgeons and see who will evaluate you.Best,Dr. Dan KrochmalMAE Plastic SurgeryNorthbrook, IL