I have a 15 year 9 month old blond short hair. She's always been the sweetest little thing all her life and has never had issues with other dogs and I've fostered plenty. She's on a down hill slide right now but still eats like the piglet she is.
I've never put pj's on her, but I will put her sweatshirts on her when it's cold. I've only used harnesses on her for walks and she's only eaten home cooked meals. She's never been sick, but due to an eye injury to one and glaucoma to the other, she now has no eyes, but don't tell her that.
I suggest not holding her so much and not to carry her around. My Delsi was not carried. She walked just like a large dog would. I let kids of all ages hold her so she would get used to them and she loves everyone including cats. She's just a total sweetheart.