Can some one help me with this issue Please?

Over the past several years I have had problems with my ribs popping. Yes that might sound weard but it is true. When this happened it shouts pain all over my entire sides up all through my back. It has caused the nurse and my friends to almost rush me to the hospital because every time I told my parents what has been going on all they say is that I am fine.

I was wondering if this could get worse and effect my plans in the future. If this is not taken care of. Because when it happens it locks my entire body to make it where I can't move a muscle. Although since I turn 18 in 5 months and my parents wont take me to get it checked out should I. Please explain. Because I need to know