Not a physician, but that's likely something else - I'd recommend seeing a reliable medical professional ASAP.

I have similar symptoms. I was tested by a Neurologist for nerve damage and also went to a Rheumatologist. I feel the ants crawling all over my body, as well as burning at times, and severe pain in my feet and legs. These are just part of my symptoms. But these do sound like your symptoms. I was negative for Small fiber neuropathy, and my EMG is normal, as well as all MRIs. This is what they tell me. I have been diagnosed with Fibromyalgia and Migraine Associated Vertigo. I suggest you go to a few different doctors and see what they come up with. At least it will help you rule out that really scary things like MS or ALS.
Best of luck to you,
Kat

The problem swallowing and the feeling of ants don’t sound like fibro symptoms to me. Coincidentally, I have Sjogren’s, fibro and a swallowing disorder. To my knowledge, the swallowing disorder is not connected to the other problems.