allergies impacting symptoms? | ADHD Information

I think this could be true. We had a nutrionist for many years who felt that
way, and I did see changes around those seasons as well, in fact I'm seeing it
now with behavior. he has a very slight cough, and little stuffiness too. When
we finally took him to an allergy doc, he only tested for dust mites. I'm
inclined to take him back though and see f anything has changed. we used
to give him nasonex for the dust mite thing, but then I stopped about year
ago when prescription ran out. I'm definitely going to get in touch with doc
again to reviist it.So several years ago I noticed a pattern to DS's behavior.  We see a serious increase in behavior problems starting around mid-march and typically eases up (to a normal-for-him level) by June.  And then we see a similar pattern in the fall.

Could seasonal allergies be contributing to this? His allergies are mild (like mine) so we've never treated them. 

A friend was telling me that her daughter, who is undiagnosed but really hyper and impulsive, is totally out of control in the spring till they get her allergy meds straightened out.  Then later in the week DH and I were discussing DS's difficulty with communicating clearly/effectively, and now I'm wondering if he's feeling rotten because of the allergies but not telling us because it hasn't occurred to him that he should.

Anyone else have a kid with allergies and notice stuff like this?

My ADHD child has a well-established pattern of his symptoms being far worse when tree pollen levels are high.  It's even at the point where, when it's rained for a few days and pollen levels are low, we see improvements.  With taking multiple allergy meds (Allegra, Nasonex, and Singulair), we've found the best control.  His ADHD symptoms still aren't controlled as well as they normally are, though.

Any time my child's body is under stress -- allergies, illness, or not getting enough sleep -- the ADHD symptoms get worse.  For example, the first sign he has strep throat is a radical and sudden heightening of the ADHD symptoms.