My testicle went up out of scrotum when i was swimming at beach. it returned to its place and was told i have varicose veins and to rest. 1 month later im still in pain and dont know how this caused it. before this incident my testies were healthy?

You should be evaluated by a urologist.

The testes are mobile and can retract in some people into the groin with sudden change of temperature (at beach), stimulation of the upper inner thigh etc. normally.- not because of varicocele. If yo have pain pl get checked out by a urologist. In the meantime wear a good scrotal support. you will be just fine