Can a cold chill be friend who past away be visiting us from the dead?

when we feel a cold chill can it be some one who past way a long time ago visiting us ?
I had some close friends past way this year
I was wondering if that can be one them when I feel a cold chill like a Erie chill
and I am kind of thinking of them at that time of the chill I just got. Some my friends who past away have grown up kids who are young adults with their own kids but with my friends who past away I can their young adult children hurting on the inside . How do I know thank to face book their kids write down stuff on face book so they are kind of saying they miss this person and they are hurting inside with saying they are hurting but I know the young adults of my friend off spring that their soul is hurting a lot . I try to write back to them on face book to try to make them feel better but I know it hard we some times have to morn a person for a least a year to deal with the pain and to me people who past away this is what I belive in the body is gone but the person sprite is still with us and when some one feeling sad that person is actuly with the person so both souls are sad the one alive and the one that not but to me that the cold chill of the person visiting us and I rally think one my friend is visiting me it possible that they are trying to thank me for trying to make their kids feel better because that what I would do I was gone and had kids and say you can see stuff from the great beyond I would want to thank any one who made my kids feel better. As of right now I do not have kids . It just the way I feel.What do you think ? can the the chill be some of the dead visiting us ? Ok that it for now.