My daughter and I have a few health issuses and my fiancee constantly pretend to have the same symthoms no matter what is it. Is tha a condition?

Attention seeking. I think sometimes the dynamics in the family are such that when one individual is getting attention (either good, bad, intentional or not), that a loved one or another family member may feel left out in some way. I don't particualarly think that this is a "condition" but is more likely a way of trying to reach out for his or her own attention.