Hi there ~
I understand your concerns. I believe that you have depression
that needs to be treated by consulting with an expert in the field, who is a local qualified psychiatrist
in your area. I also believe that the strange feeling in your testicles and abdominal pain
along with lower back pain
need to be examined after a detailed history and your testing for blood and urine as well as an imaging studies will give you the answer to you problems. I hope you consult the doctor as soon as you can. I hope this helps.
Take care and have a lovely day!