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.
Anxiety can cause hundreds of different physical responses, and unfortunately many of these responses can lead to their own anxiety. One such response is numbness. Numbness is a broad term that means a lack of feeling..