i have a 7 year old gsd and a 3 year old gsd. they have always had raw occasionally their whole lives. i switched them over full time about 6 months ago or longer. my 7 yr old has always had GI issues, which seemed to subside after the full switch. however now my 3 yr old is now having allergy issues, scratching, losing hair etc.. he has never had any health issues in the past. my 7 yr old is back to having GI issues. he has very sour smelling gas and either has diarrhea or is constipated. the 3 yr old has also been either constipated or has had diarrhea. i was feeding a mixture of meets, and noticed that red meats were very rich for them, so i cut back. their diet now consists of chicken, turkey, fish once a week and little beef. i feed organ meets once or twice a week. what am i doing wrong?