mother passed away - pro recording help needed

i don't know how to write this request without sounding pathetic but my mother of 62 just passed away due to a misdiagnosis and a horrible hospital mistake (many, in fact.) I'm an artist (mostly dramatic writing but also in various versions of performance art) and i have been breaking down in the most random situations because of my sorrow. I've never been witness to such grief and i think it's worth documenting (for incorporation in some later work, i'm not sure what yet.) i'd like to record myself in these moments and want the best possible sound but it must be portable since i never know when i'm going to freak out. can someone please recommend some system including a mic? I don't like mp3 or minidisc. is there something better? a dat, maybe? regardless, i'm not able to research anything under the circumstances so a detailed recommendation including all the gear i need (including prices for used and new, if possible) would be very much appreciated.

I know others have gone through tragic loses but i hope all others reading this escape such an experience. there are no words to describe the sadness. my mother, like most mothers, was a beautiful person and i'll never be the same without her.

thank you,
dennis

p.s. please excuse me if i don't answer responses or express thanks for them...it's very hard for me to just exist right now but i will certainly be appreciative of any help, whether i'm able to respond it here or not.