I too agree with Jane and Cassy - our little girl besides her early battles with UTI is very rarely sick except for typical kids runny noses etc. . . but she is usually done with it before I am (or my husband for that matter).  I don’t throw her into pits of germs or anything but I do take her everywhere I go and she seems to deal with everything fairly well.  I think like Cassy said it is easy to blame everything on CAH but it is not necessarily so. . . once you guys get to know each other and the routines of everything it will get easier as well.  Good luck!