As you describe it is unlikely you will have any significant problem. I must clear your doubts.
1. If the testis is seen and palpable, it is normal. Higher or lower does not matter. Some individuals have a little higher location in the scrotum.
2. On the face of it, such location does not require any surgical correction.
3. Even if testis is abnormally placed it does not affect sexual functions but it may affect fertility (unlikely in your case), it would be better you consult a urologist/surgeon and get it confirmed and relieve yourself of anxiety once and for all.