Severe unknown allergic reaction?

[Alexis]

I've had a series of hives breakouts multiple times a day everyday for a few months and about 3 weeks ago I started having trouble breathing so I went to see my doctor that same day who gave me 5 different medications and told me I suffer from chronic hives. We cannot figure out what it is but that's why I have an appointment with an allergist tomorrow. However, the nurse told me to stop taking all my medications Friday and since then my hives have come back and I'm having extreme difficulty breathing that comes and goes. (While taking the medicine all of my symptoms were completely diminished) should I just wait patiently for my appointment tomorrow or should I visit the emergency room tonight? I'm a 16 year old girl and I missed school today because of this...should I stay home until my appointment tomorrow or should I go to school? What if I get another reaction and can't breathe? It feels like my airway is getting tighter and narrower