Odd that you'd have the same problems home and at work, different environments. One or the other should be different, I'd think. I'd have a thyroid test and explain to the doctor how over-the-counter and whatever prescription you were given didn't work. Are you going to an allergist or just an internist? The internists are kind of the throwbacks to family physicians and think they can solve anything but mine doesn't do too well. I keep on him and researching and figuring out things for myself and bullying him into trying things. You might want to try a different type of doctor? or a nurse practitioner (mine is a woman and pays more attention and is more thorough than the doctor and has lots of alternative health knowledge and connections).

Weather (cold and/or lack of humidity) can do a number on sinuses too and asthma and GERD can cause some of your symptoms as well as thyroid problems (that's the first thing I thought of as I have hypothyroid and asthma and they cause at least half the symptoms you mention).

Good luck! But looks like it would be a good idea to wander back to a doctor.