Paula
its too soon for anything else darlin.Roll with it for a while as no amount of counselling or widow sites or anything else will help at the moment.The pain,the lonliness and the sadness are part of the grieving process and you are allowed to indulge your grief for a while.You just can't force these things,and we all cope differently,and bearing in mind how many years you lived with cancer and the knowledge you were going to lose Jim,and the traumas you went through its not surprising you feel as you do.
Jeez i had Robs ensure in a cupboard for two years after he died and just couldn't throw it out.
Be kind to yourself honey and do things at your own pace,and remember, when the world gets on with its life and you don't know how too.....thats normal,hard as hell but normal.
((((hugs)))))