For The Last 5 Days I've Been Having Trouble Swallowing.

For the last 5 days I've been having trouble swallowing. I thought I was going to get a soar throat or the flu but haven't. There's no pain but I have a hard time swallowing. My mouth is dry and I notice I haven't been producing enough saliva. Yesterday and today it felt like I couldn't breath. Felt like an anxiety attack. I just don't know if I should go to the ER or wait for my appt on Thursday.