Help. I have a 17 year old Congo Grey that I've had for almost 11 years. I am his third home and forever home. Up until about six months ago we have not had any problems or issues from him. But over the last six months he has has developed a screaming issue. When he screams all he screams is Stella lay down which is our boxer dog. . Now for some reason he has been choosing to scream and I've tried to ignore him I've tried to cover him and at this point I do not know what to do. What I have noticed is when I put his UVA UVB light on he seems to scream or it seems to be more prevalent. Is there a chance that this light is bothering him to the point of screaming? Any help would be greatly