Welcome to health care magic.
1.For over weight you need a lot of dedication and patience to loose weight.
2.I would recommend - a 1 hour brisky walk with optimal food ( no junk and excess fat content)
3.Try this for couple of months - you will gradually see the result at least 1-2 kilograms a month.
4. Don't try for a express way to loose weight. That i would recommend.
5. Coming to the discomfort
back pain and pain in testicle - can be
radiation pain from the spine - when the
nerve gets compressed the pain will give that way. Reason can be due to the weight also.
6.But back exercises will help to get better from.
Good luck.
Hope i have answered your query,
any thing to ask ? do not hesitate to ask.
http://doctor.healthcaremagic.com/doctors/dr-ganesh/62888