What Causes Swelling Around The Eyes And Throat After Taking Levothyroxine?

my dr. changed my thyroid medicine levethyoixine from 25mg to 75mg when i started taking it my face swelled up around my eyes, my throat too i couldn t breathe right , i used my mom s inhaler to open up my throat, my arm got hives on it ( just the right side ) now the swelling went down after 3 days, i stopped taking it until i see my dr. now i m getting sick throwing up when i start moving around my heart beats fast and i m gagging and chocking when i set sick or even cough, Dr. says my thyroid is way low, she has done blood work but i haven t seen her yet for the results, just a call about medicine being changed, should i go to the er, or wait for appt, which is a week away still...Help!