Trust me, your doctor will appreciate a heads up on ALL issues you wish to discuss. The "while I'm here" patients can wreck havoc with the most organized doctor's office. It takes time to get shots ready, adminster them, give you instructions, check to make sure there is no reason you CAN'T get it, etc. With all of the clinics at drugstores, supermarkets, etc. many patients get flu shots from other sources. DM got hers at her retirement center, but I would have called her doctor to arrange it if she hadn't.
I manage DM's care, and I found that there are things I can do to make things run easier.
1. Make a list of complaints that are not an emergency, but need to be addressed. DM is seen quarterly, so it's not that much of an issue. She also is out of her HMO, so we don't have to deal with referrals anymore.
2. Renew ALL prescriptions at the same time, for enough refills to go BEYOND the next appointment by a few weeks. Even though some end up expiring before they're renewed, we never run out.