Hello, I m a mother of a 20yr old male boy, as a child his problem was unable to eat in the morning had lots of migraines underweight due to lock of food, still have the same problem until now, he smoke marijuna but he said he still can t eat...should I be concern about this. I encourage him to eat fruits, liquids and sometimes I see he had eat at the end of day but that s only one meal a day.