Allergies, specifically tree pollen (allergy, blood, ache, shoulder)

[seeriously]

I know this is an unusually bad year for pollen. It's been insufferable for me. Aside from the usual there's now neck ache and shoulder pain. Doc assures me this can be caused by allergies, something about back of neck glands, and today I had blood work done and the tech asked me if I've had neck pain, says she's had it in the past. I never heard of this. Any comments from allergy sufferers?