Where do I start. First of all, I've been there, so I do get it.
That being said...if stats make a difference for you at all, ALS at your age, not to mention bulbar onset, is so incredibly rare. It would be like winning the lottery, X100!
As well, and I say this from experience, swallowing difficulties do not present as you thinking you have issues, you start choking on your liquids and solid, as muscle weakness causes you to aspirate your food. Not trouble, choking.
Your mind can play terrible tricks with you. I've had it all - hoarseness, thinking I'm slurring, issues swallowing. Knock on wood, nothing has ever come of them. So, please trust me when I say nothing is wrong with you. Well, aside from anxiety :)