Gastritis?

So all day today i’ve had about 5 out 8 common symptoms of Gastritis but I’m not sure if I should be concerned or not yet. I’ve been nauseated all day and having some nasty burps that don’t help my stomach pain. I haven’t thrown up yet despite feeling like I need to. My parents know and they probably aren’t going to get me to a doctor or to urgent care until i’m throwing up and dehydrated. Should I be concerned and ask my parents to take me to my GP or should I just wait it out?