Help Mamas 😢

Je
My 4 month old has been sick with what doctors think is the norovirus and has been throwing up /diarrhea for 8 days . We took him to the doctor twice and they gave us some meds and pedialyte but last night he took a turn for the worse and stopped peeing so we took him to ER and they are giving IV fluids and running tests . I am just a basket case and wondering if any of you moms had similar experience? Any words of encouragement? This is my first baby and his first time being sick , I am really struggling 😢