I sometimes feel that I am travelling back in time. Sometimes when I am sad and I try to relax, all of a sudden I feel that for a second or two, I was in place I used to visit earlier, e.g. I was in my hostel room with few friends, or at a friends home, opening slippers before getting inside. These things make me nostalgic. anyway, anytime, I remember something, and then I become sad, thinking of what all I have lost. Is it normal and not a serious issue? Right now, I am living with my parents, and not with my husband from 1 year, as he went abroad, I miss him too, may be being alone makes me think these things, and sometimes I even feel that I am worthless, sitting all day, though I am taking much care of my 1 year old baby.