My dd is 7. She has always been sensitive and cries easily but recently she has started crying most days and often several times a day for either no reason at all or very minor things. She is happy and normal in between crying episodes. I doubt the GP would be interested, I know patents of kids who self harm and threaten to kill themselves who get no support so I can imagine they will care that my dd is a bit sad.
She has some minor sensory difficulties and dyslexia but she is very bright and is doing well at school. She has some good friends and the teacher has been keeping an eye on her and there are no problems in her friendship group as far as she can tell.
WWYD?