Cisplatin + Eurbitux = ?

I'm a tonsil cancer survivor, stage IV, but since Eurbitux was first used for colon cancer, I thought I'd ask here too. 3.5 years ago chemo and radiation saved my life.  However, the long-term effects of the combination of Cisplatin + Eurbitx were and maybe still aren't known. Just over the last year it appears to have effected my cognitive ability.  I'm coming to grips with the fact that, there are times when I have trouble putting two sentences together.  My thoughts get all jumbled and I have trouble saying what I'm thinking.  There are even times when someone will tell me something and I'll get what I'm told totally wrong. Is it just me? I'm looking for answers.  To what?  I don't know, I forgot :)  Just happy to be alive.