 [ Symptoms ] can profasi lead to a false positive when taking a pregnancy test [ Disease ] yes brittle nails is a sign of inadequate nutrition along with thinning hair low body weight irregular or missed periods and always feeling cold her diet does not sound adequate in fat or calories it sounds like your daughter needs help before she would even consider having another child maybe now that she is older and is a mom she can see the benefit of getting help so i highly recommend encouraging her to go for treatment for more on signs of an eating disordermalnutrition see this webmd article