Light throbbing pain comes and goes in right testicle for last week, when should i decide enough is enough and check it out?

Exam?: If you examine yourself and there is nothing suspicious then you can try a week of alleve and jock strap. Any bumps or if it doesn't go away then get checked out by doc. www.peedoc.com.

Testicular pain: Testicular pain comes from many causes: trauma, infection, clothing. We would need a proper history to determine what is most likely and appropriate therapy. I recommend evaluation if it doesn't resolve in the next day or two.