Awaiting assessment for adhd

I have no idea how to start this - basically I was suspended from work 18 months ago, accused of several things. Had no recollection of even being at work let alone what’s alleged. This has lead to a complete memory breakdown, I struggle to remember one week to the next now. I attended memory clinic following a referral and they have given their conclusion, stress and mild cognitive impairment. They also suggested adhd which they did an assessment that was not a valid one so to speak. I scored low on autism but high for adhd. They said book in with the GP to ask for an official adhd assessment, saw gp, sent an online pre assessment which I scored 6 and that is highly indicative of adhd. Since then I’ve researched a lot and omg it’s been like a right can of worms. My life started to fall apart about 5 years ago when I changed jobs after being at my previous job for 15 years. Everything was different, I really really struggled, I was teased by younger staff and it just ended up being bullying. I take meds for ptsd and anxiety already - over time the new staff started telling me I was fat, I was autistic because of some of my behaviours. So on this fateful night at work it’s said I was verbally sexually inappropriate, was racially intimidated by pushing a colleague on the authenticity of their food and demanding they bring me food to try for myself - this is utterly absurd as I have a really severe food texture phobia and I was also reported for mimicking a black colleagues accents, I’d done voices and accents my entire life it’s like a compulsive habit but never ever mean to offend anyone. It took nearly 17 months for the investigation report to get to me. I’ve just sat there reading it thinking what the actual fck. None of it makes any sense. Like I say I have no recollection of what happened at all I don’t even know if i believe it’s true I feel totally gaslighted. Has anyone any advice at all. I’m feeling so stressed and broken.