Hi, my son born with undefended left testicle and he had a surgery to bring it down when he was 10months old ,everything is going normal, from last 2 to 3 months he is frequently getting fever, cough, runny nose..every time doctor gave him amoxil...and what I am also noticing an increased size in his testies when he is sick..doc did urine test first time.. and scrotum ultrasound when he is sick for the second time..because doc noticed his right testicle going up when he coughs.. the tests came negative.... he is doing ok now... do we need to check anything else..pls let me know..