Think I got done dirty by the PIP assessor

I had my PIP assessment this morning at 11 and they rang at 10:30 which I wasn't expecting and so I was half awake and very groggy. One of the questions was about my autonomic dysfunction symptoms that I know with 100% certainty I wrote down on my online form. The woman said "No you didn't put it down on the form". Well, I did. I wrote extensively about it in the additional information section right at the end because none of the other sections of the form particularly applied to the specific symptoms that I get

So I said in response "well I know for a fact it's on there", and then kind of played it off like I didn't know why it wasn't (according to her). But she was lying 1000%. There's nothing I can do about it though because I didn't ask for a recorded assessment. To be honest I'm kind of done with all of this **** anyway. The LCWRA tribunal was enough torment and stress, and now that's finally over and I was successful, I'm already being done dirty by the assessors right off the bat once again. I don't have the mental or physical energy to fight this all over again because I'll end up doing something stupid