Possible correlation between my son's daycare illnesses and my own symptoms

So since 2019 I’ve not felt well a couple days a week. I am starting to link it to when my son (who is in daycare) has any symptoms of a cold or virus I end up with a very predictable constellation of symptoms including, but not limited to; Chills Malaise Elevated temperature (99.5) Restlessness Venous pressure and discomfort Elevated heart rate Phantom smoke smell This happens in a pattern and comes and goes. I started to keep track of when my son was sneezing or had a runny nose and it seems to match that shortly after I start with feeling chilled, muscle aches, visual disturbances and phantom cigarette smoke smell, restlessness at night, malaise and fatigue. It’s almost like an exaggerated immune response that is in a vicious cycle week after week. My son is 5 and in daycare so he is certainly picking a lot up. I just can’t understand the restlessness, visual disturbance, brain fog, and smelling cigarette smoke.