My Brother Has Been Complaining Of Pain In His Arms,

My brother has been complaining of pain in his arms, on and off. After he jogs, he feels better. This has been going on for some time.

Now he has pain in his left lower back, testicle and leg. I'm thinking this is new because he's been doing some physical work for a few weeks that requires bending over quite a bit. I'm inclined to believe it's not related to the arm pain he's experienced for over a year.

Do you think he needs to make a doctor's appointment, go to urgent care, or try taking some OTC pain medication?