hi,sorry i'm not sure what kind of question to ask,or where i need to post this,cause i dont know whats wrong with him.

my fiance has what looks like varicose veins in his left ankle,his ankle looks slightly bruised in same area,he also has numbness in his left leg from his hip to his knee.(which occurs at night time)he is on medication for high blood pressure,and cholesterol(no tablets) and he is only 28years old.last week he was at sleep study cause the doctor thinks he has sleep apnea,im more concerned with his heart or his circulaton.i know the doctor has his reasons for having sleep apnea on his mind,but does anyone else know if it could be possible that it could be his circulation?

thank you for reading and responding