german shepherd jumping up my husband

Question
Hi i have a fantastic german shepherd 5 year old (male). He had a operation on his throat aged two but when he came back from the vets, whenever i hiccup,cough or sneeze he is very scared it does'nt bother him if my husband or my 4 year old son does it,only me he was never like it before he went to the vets, and also if i go out from the house and come in i will fuss him a little then carrie on with my work etc, but if my husband goes out and come in my dog goes mad jumoing up rolling over and my husband can't move for my dog jumping all over him, i am the one thats feeds him,i walk him twice aday, brush him i do most of everything with my dog this only started about a year ago can anyone tell me why he has started to act this way when my husband come in,even if my husband is outside and me and my dog are inside my dog won't settle untill my husband comes back in, hes ok if my husband is at work all day well until he returns that is. its only if hes outside washing the car or something like that, other than that he is a lovely family pet we ove him to bits. but if anyone has any advice that would be great

Answer
It is unusual for a dog to change much between when it matures at 3 and when it gets old.  I am not sure what is going on.  I can give you a method to correct the jumping, but no insight into the rest.  Have there been some changes in the home?  

Consistently is very important in correcting jumping and other problems.  Quickly correcting him each and every time he jumps on somebody is very important.  He must never get the affection he wants.  A number of things have been used.  One of the most gentle is to grab his front paws and hold him up.  The traditional knee to the chest or step on his paws are fading from use.  As part of the the trend away from negative methods, just step backwards leaving his front feet to fall to the floor.  After a few tries, the dog may just stand there looking confused.