People can be allergic to BAC water, also like some people said above, 192aa injections can cause the body to produce anti-bodies towards that type of aa sequence, the sterility of the manufacturers that made the products is a factor ie bacteria, fungus. Also, the product may be clumpy or you are not injecting IM/Sub Q deep enough... My advice to you is to use saline 9% which is what blood is, and mix it with the HGH...
Always seek medical attention....