Viral infection rears its head again

Yesterday I had to catch public transport back home and as it was rather a windy day, it was not such a good day for me to be walking around, because high winds cause a lot of pollen, dust and other things to be in the air and it's not good for me when I inhale it through my nose or mouth.
My body cant handle dust, pollen and other small particles, as they get caught up in my sinuses and lungs and make my sinuses hurt (I get pain in my frontal sinuses), my ears start to hurt too because for some reason those little particles must get in my ears too and clog them up as well and my lungs hurt too, inhaling those particles irritate my lungs and cause me to cough more and all of this causes an allergic reaction.  In addition to this, the air pressure changes when there are high winds and that also affects my sinuses by making them more sore and more prevalent to infection.

When these little particles clog up my airways, the airways get irritated, inflamed and this allows any lurking viruses to invade, because my immune system is not functioning properly and so the pathogens (viruses) can easily enter, unhindered, where they can multiply and cause infection. Obviously because I haven't been feeling at all well lately, there are always viruses around, ready to invade and infect me more, so doesn't take much to get me sick.

By the time I got home, I was feeling very lethargic and ready to lie down and sleep.  My lungs were quite sore and I was coughing a lot - the bronchitis cough. My sinuses were also sore and I was getting sharp pain from my ears, especially my right ear.

Today, I feel really sick again, even though I slept for about 10 hours last night - obviously I needed it, after not sleeping enough yesterday.