Hello Dear
It is quite interesting to know that we are getting more aware of our mental health. This gentleman problem seems to have Anxiety Disorder - specifier “Hypochondriacs”
My advice is
Consult Mental health Professional
Or
Visit :- oshoclinicpanchkula.com
Next Steps
Read about hypochondriacs and related topics and get tips for self management till you consult Psychiatrist.
Yoga is important role to help and heal anxiety disorders.
Pranayama, vakrasana can be useful