Our son Blake is 4 months old with CAH (salt wasting type). He only weighs 13lbs and is 23 1/2" long. He is in the 50 percentile in weight , and dropped from the 50 percentile in height to the 0 percentile. He only gained 1" in 2 months?? We are concerned that he may drop off of the growth curve?? Has anyone else experienced this????? The Pediatrician and the Endos are questioning this also?? Any information or advice would be greatly appreciated!!! Thanks!!! Email address is gbosley7102@yahoo.com