<<Disclaimer: Verify this information before applying it to your situation.>>

The Old Bay scoop..
Thank you, for all the replies, everyone has been so helpful.

It is produced by McCormick & Co in Hunt Valley MD  Ph#  1.800.632.5847

6 people reported OB to be GF.

1 person reported severe reactions to OB, thought it may be the MSG.
Yes, I do not tolerate MSG.

1 person suggested possibly imitation seafood; it is put together with
wheat starch.  Hadn't thought about that.. although I don't think so in
this case, great for the future knowledge.  Plain Halibut I prepared
myself.

A few people suggested food poisoning.  Since my housemate has eaten it
and not had any problems I ruled that out.

So I called McCormick and asked about gluten and MSG.  The customer
support representative assured me there was no MSG, no gluten, and they
did not use flour on the lines.  Unfortunately she did not seem very
knowledgeable or helpful, just rather short and said their spices are
gf.  I do not think she was a fair representation of McCormick.

From Bobbi:  The customer service person seemed quite knowledgable and
helpful. She told me that all of their pure spices and herbs are GF, but
that some of their mixes are NOT, including chili powder and some of the
curry mixtures. However, she could not guarantee that there would be no
cross-contamination, although they clean their lines thoroughly between
each seasoning^Ô

In Conclusion- Old Bay seems to be tolerated by most.  Possibly I got
the 1 box of cross contamination or not gluten related.  Know if I even
smell gluten cooking my nose starts to run and my throat closes up.  The
only other questionable item in both meals was some Grey Poupon mustard
used to make the salad dressing.    Thought that was ok though.

Thanks for all your support..
Happy eating
Tanya in Seattle