Anxiety and panic. Memory problems too.

Guess I am not sure exactly my problem is or not diagnosed . I have been taking zapiz 0.25 for the past 4 years.  I was all fine until 4 years back I was admitted at hospital for high fever. After discharge I keep worrying unnecessarily and then doc prescribed me with Feliz 0.5 MG.  Nowadays I have reduced to 0.25 and I don't feel good enough as I was before,  start panicking,  anxiety triggers and I keep worrying if something will happen to me. Nowadays it has become worse and I am avoiding meeting up with relatives,  trips with friend and all that.  I am afraid what if I have some mental problem and I freak out in front of my relatives or friends etc.   I feel too low when anxiety triggers..  I am not sure also if it is anxiety disorder or I have feeling that I may end up with some mental disease.  All my good days and good opportunities are being missed.  I have cried several times thinking about my condition.  I feel weak,  nowadays I think I am slightly having memory problems too.