Hello,
I recently developed an extreme fear of loved ones dying, especially my parents and brother.
I have always had this fear. It started about 11 years ago when my mom was diagnosed with cancer, but i was usually capable to control it and function normally.

Recently my aunt passed away and 2 months later my mom had a health scare,   all is well now thankfully. But ever since, i started having crippling thoughts of someone i love dying, they are constant and are affecting my capacity to function normally.

Any advice to ease these thoughts or control them? 
Thank you!