I recently tried colostrum for the first time. I feel strange — flu like and spaced out. Has anyone heard of this?
It is possible the colostrum is boosting your immune system, and thus killing pathogens like viruses or bacteria. If a lot are killed off at one time, the toxins released by those pathogens can cause something called a Herxheimer reaction, which sounds very much like what you experienced. So your flu-like symptoms and feeling spaced out may mean that the colostrum is effective, but you might try cutting your dose to see if it's more tolerable.
What brand of colostrum are you using? I've tried it before but never had any reaction, good or bad.