feels like I'm slipping away

Just that. Most of the time I feel like I'm flying above myself anyways but at the nursing home yesturday when I was trying to have a conversation with one of the woman there I started feeling like I was slipping away..I was afraid I was gonna go into a coma or something. I couldn't feel myself anywhere and I keep getting these brain spasms. Its such an uncomfortable feeling all I can do sometimes is just cry and feel sorry for myself