Opportunistic infections (OIs) are infections that occur more frequently and are more severe in individuals with weakened immune systems, including people with HIV.
Being nostalgic means to miss the past time. It seems that a real life was in the past because now in the present is different, probably things changed and we know that never is going to be the same. It leads to a nostalgic feeling.
Shame is a feeling that we are causing by our own false beliefs, but loneliness, heartbreak, grief, sadness, sorrow or helplessness over others are existential feelings -- feelings that are a natural result of life. We feel heartbreak and grief over losing someone we love.. It protects us from other feelings that we are afraid to feel, and gives us a sense of control over our own feelings. As bad as shame feels, many people prefer it to the feelings that shame may be covering up: loneliness, heartbreak, grief, sadness, sorrow or helplessness over others.