I have an ISFJ colleague who recently lost her mother to a long battle with breast cancer. She herself suffers from Crohn's disease and other milder diseases. She passes out every now and then. She told me a bit about Crohn's disease and said it is an auto-immune illness that is probably stress-related (it gets worse when she is stressed out). I asked her today if the fact that she was so ill wasn't related to her mother's long suffering and death, but she told me she has been sickly since she was 5 (she is 19 now). She admitted illness is her way to respond to emotional pain. She keeps it in and gets sick. I asked if she had been to see a psychotherapist and said she had, but didn't want to speak to him, because she didn't want to open up to a stranger.
I said I could relate to a lot of what she felt and offered an open ear if she needed to talk or needed any kind of help I could provide. She seems to feel comfortable speaking to me about these things and always offers me a ride home after work.
I really wish I could help her, she's a very sweet girl.
Is this common among ISFJs?