my daughter is 23 and last year on 3rd july she noticed that a new nail was starting to grow, big left toenail, today it isalmost complete but she notices a shadow and is scared that this is going to happen again (3rd nail new growing under the others) . she has very sensitive skin and has had infection and mucus on toenail, but she has been treating everything very carefully a dermatologist advising her. i have read about syndrome like marfan she is 167tall and 54kilos. never had problems before.... pls advise me doctors are not very helpful some dont know or are only interested in money. i must find a solution.