With FND you can often be surprised by a new symptom as it can be an issue with any function caused by the brain so when my swallow stopped working I was not shocked and we carried on for a day or two as things can come back as quickly as they start. Not recommended for new symptoms, best to mention to a medical professional.
On the 3rd day I contacted the GP as I had had no medication, fluids or food. We was asked to go to A&E where I failed a swallow test of course was found to be dehydrated then like FND does after a day my swallow came back.
I was only home 2 days before it went again so off to hospital same routine and this time I was fitted with a NG tube which goes from your nose in to your stomach to put liquid food, medication and water down.
This was only in a few days before my swallow returned and out it came and home I went.
This was repeated a few times until I was kept in hospital for weeks upon end with the NG tube in place and eventually after several meetings and tests I was allowed home with it in, but it was not an easy ride as 1 doctor did not understand the condition and therefore didn't believe I could not swallow, I had to have a psychological assessment before he would agree to treatment and in my area they did not know the process for adults in the community with NG tubes.