Immunity problem

I had a TT in Aug. '07.  A few months after that, I started getting sick about every 2 or 3 months afterwards with a simple cold or possible allergies.  I went to my PCP last week and told him the same thing.  As of now, he thinks could be a combination of an actual cold AND allergies.  But he couldn't explain the allergy symptoms during the winter moths.  Do you think this has anything do do with the TT in Aug.  I'm stumped and my PCP never really answered my question.

Thank you

[Mark Lupo, M.D.]

Unlikely to be related but if persisting, consider an ENT evaluation to look at the nose and throat to see if there is any unusual problem.