Mark Feblowitz wrote:
> You don't say what your symptoms are. That could clarify this discussion.
>   
Mild gastro-intestinal upset.  _Not_ full-fledged lactose intolerance 
reaction (and believe me, I recognize that in me) but just sort-of the 
beginnings of it.
>
> And let's not forget - skin absorption is not the only route. There's 
> also inhalation.
>   
Yeah, I thought (in fact, I think I mentioned) inhalation - I'm severely 
LI and even small amounts ingested usually have some affect on me.  On 
the bright (for me) side, I'm not (so far) allergic to it - I can eat 
things w/ Casein without problems, for example.  I also noticed that in 
handling the powder, some probably got onto the counter where we 
generally prepare foods - so it's entirely possible that there was some 
contamination from that.  We'll be more conscientious about cleaning it 
in the future.
>
> Don't take this too lightly. It's not likely psychosomatic.
>   
Well, most people who know me assume I'm nuts anyway ;-)  But I agree - 
I don't think it's psychosomatic and I do think that I just need to be 
more careful.

Thanks to both Mark and Steve for their comments.