De- personalization and de-realization.

I feel like who am I what am I doing here whenever I see surroundings I feel like is it for real is it happening reallyy also I feel dizzy I feel like as if I may fall now, whenever I goo outside I feel likee is it really happening or not I feel detached from myself one one time I feel like who am I what am I doing with whom I am talking what I am talking is it happening really or not whenever I am alone I dont know whats going on am I for real ... this is very tensed for mee what is happening I dont know how to cure thiss plus I feel dizzy whenever I stand and talk feeling like I will fall down. Please suggest what is this and why is it happening and whats the cure for this and whom to show this situation this is very bad condition for me right now🥺