What Could Be The Cause For Feeling Tightness Around The Neck, Mouth And Chin?

I ve been having a tightness in my throat that makes it very difficult to breathe. Its been common, especially at night when I am trying to sleep keeping me up for hours. The tightness is occuring around the esophagus and the area just below my mouth/chin. Nothing I do seems to work, allergy medication, my asthma inhaler, or even sleep aiding medication. When it gets really tight and is at its worst, there is a slight pain in my throat and I have an issue with shaky hands. I m hoping for some advice on what it may be, or what I could do to be able to breathe easier to at least sleep at night until I can get to a doctor.