You wouldn't believe all the physical symptoms I have. I have gotten that feeling in my throat, had weird feelings on my lips and tongue, had trouble swallowing (especially during the time I thought I had ALS). I even thought one side of my body was weaker.
What you're describing sounds like typical anxiety symptoms! ALS is extremely rare, and the bulbar onset is even MORE rare. You should certainly stop googling... that just adds fuel to the fire.