Your immune system may not yet be up to speed so it's still wise to stay on top of anything you may catch. I started to get hayfever a couple of weeks ago (on tx), and found a 'saline rinse' bottle with pre-dose saline solution (obtained from the chemist) cleared it quickly. (I had similar a couple of years ago which turned into a nasty cold and chest infection, so whether you see a doctor, get cold/flu/allergy tabs or use a saline rinse, it would pay to try to control it)....
I don't know whether it's anything to do with the meds but I suspect your body is perhaps still vulnerable.
Wonder if you've recently changed from air conditioning to heating, depending on where you are in California. My nose often runs temporarily when I switch the systems over. Running clear is usually an allergic reaction and can be caused by the heating.
I agree with the above advice to make sure you don't have a sinus infection. I got so many infections towards the end, and for the first couple months after, treatment.