I went to the Dr earlier this evening because my throat feels tight and I've had difficulty swallowing. I thought it could be my thyroid but the Dr I saw said my thyroid wasn't enlarged. And is sending me to a GI specialist. I noticed after I left the Dr that my pulse rate said 124 on my papers from the Dr. Now I can't sleep and can feel my rapid pulse while playing down. I'm 31 yrs old and I don't know what's wrong with me but I feel completely off! Any suggestions for me?