I’m relieved that you are feeling better! We have been sick from ragweed pollen and I have one dog sick from it even though she’s on daily 5mg of Zyrtec. You might have really bad allergies going on.
I do get some allergies, but they tend to remain respiratory in nature. The chills and body aches I had initially were more of a flu-like feeling. Anyway, I'm well past that stage.