Hello MML
I had Hyperemesis with all of mine, ds3 has ASD with a severe speech disorder; ds1 has asd; ds2 is NT and ds4 is tiny (but showing a few signs of not being average, hoping just babyness and about to see a cranial osteopath).
I suspect I have some idea of what you're going through.
Except that I am priveledged to have worked on a HG support / info line for blooming awful so I have a much wider picture.
Firstly, the only child of mine that needed hospitalisation was ds1; the rest were all sorted with meds. DS1 has a speech and language age of 16 - 321 at his last assessment (almost 3 years ago aged 6). So, clearly no major damage there then!
None of the othe mums I talked to about their HG- babies reported any SN.
HG is terrible for the mother, but the baby only suffers if evere dehydration is allowed to progressa nd threaten life. I kow of many cases where Mum's health has taken ages to recovre, PND has arisen etc etc etc- bt not issues with baby.
I have a list of things in my head that could have triggered the boys SN; all of them start with something I didnt do, or should have done, etc etc etc. That's normal, i think. but even if HG were related then what could you have done? Why wuld that be aby different to say contracting a virus? It woouldn't.
the time after a dx for sn is hard; and often needs conselling to get throug. What you are experiencing I think is a normal step but you must be gentle on yourself.