I'm the same way, actually I feel as though I'm a completely different person, I cry a lot or blow up and just cannot handle things the way I used to, everything is difficult and I feel as though my IQ has gone down

My brain feels.....well, damaged which it is
Definitely worse if I'm tired.

Some days during therapy I ask questions and at other times I just sit and stare trying to take everything in, then my headache gets worse...everything is hard, having a normal conversation and my reaction to it is so "off"