Where Did Spring Go?

I used to have really bad Spring-time allergies. Watery, itchy, swollen eyes. Stuffy / runny nose. Constant sneezing. If you’ve got allergies, you know what I’m talking about.

Strangely, I have not suffered from the itchy eyes recently. Although, I have been sneezing a good amount and blowing my nose constantly. So I have some symptoms of the pollen-driven reactions, but not all of those I’m used to experiencing.

I narrowed it down to 4 possible reasons.

1. After LASIK eye surgery, the laser must have burned off the ability to sense irritation in my eyes. 
   
2. I have spent so much time outdoors and being exposed to different environments that my body, eyes specifically, has developed an immunity to the irritants. 
   
   
   
3. My mostly organic diet has improved my resistance to pollen allergies. Specifically, my consistent daily intake of carrots has strengthened my eyes in more ways than one. 
   
4. Climate change is real. Spring no longer exists or has been severely curtailed. Pollen is not as abundant in the environment, leading to less plant life that would normally absorb the CO2, in effect allowing greenhouse gases to grow in the atmosphere, leading to global warming. 

Or maybe all of the above.

What do you think?