Glad to hear you are home again. Sofa therapy is wonderful!
I became very ill 2 years ago with a really rare neurological condition. I basically got ill with the flu, but as my immune system attacked this virus it also attacked my brain stem.
I was left with no sense of balance, very twitchy/flickery eyes, constant vomitting and uncontrollable shaking.
None of my doctors or consultants knew what was wrong with me until I was transferred to The National hospital for Neurology and Neurosurgery in London. Once there I was diagnosed within about 10 mins, though they had never treated anyone with my condition.
The illness I had only usually occurs in children and I have only found a handful of adults on the internet who also had this illness.
After 8 weeks in hospital and loads of physio while in hospital I have made a full recovery.
Now the point to my great waffling tale is that there are so many conditions and viruses out there that can make people ill which are easily cured once diagnosed. Also I must say that I found the NHS to be fantastic. I couldn't have had better treatment!!
I am sure you will get a diagnosis soon and your little DS will be back to his normal self in no time. Good luck!!