Mother father symptoms and conditions

I have been on Levoxyl for about 3 years now, maybe more. My mother , father, and I all have Hypothyroidism. Mine was diagnosed at 19 when I started on Levoxyl and now it is around 3 at 75 mcg. I do have alot of these symptoms, including fatigue, depression,insomnia, major migraines, bloating, but my mom and I also have ringing of the ears and I wonder if this is a symptom. I have been to an ear specialist and had my hearing checked, everything is normal he says. Maybe I just have very sensitive hearing and can hear the slightest things? I don't think so, I didn't have this ringing before a year and a half ago!