Posted 2/18/2020 5:29 PM (GMT -6)
I've had migraines for several decades and bright light (among other things) such as sunlight, LED headlights and taillights, incandescent bulbs, fluorescent bulbs, and reflections/glare off car windows, truck bumpers, tailgates of trucks, etc. really cause me a lot of problems. In the winter, it seems to be worse with the sun, based on its angle. I've noticed that over the past several years.
In my case, I bought the darkest, high-quality polarized glasses that I could afford. I also got a medical exemption to have my car windows tinted darker than allowed by law in my area. I went a step further, however, and had my windshield tinted, though it's not legal.
For me, the last hour or two before sunset is the worst, so I try not to be out driving during that time. That's when the sun is low in the sky and seems to be the worst angle for me and is reflecting off everything causing glare.
As for the symptoms you're attributing to sunlight (heavy eyes, blocked ears, etc.), I'm not what the mechanism of action might be to cause those, but I don't personally have those issues. If you have pressure in your head, maybe that's a headache or migraine? If I get a flash of bright light or glare, while not wearing my sunglasses, that can (and, often does) trigger a migraine for me and there are several physical effects.