My thyroid levels have always appear ok. When I was 16 I had a nodule removed on my thyroid. Had a couple more thyroid nodules over the years which would go away eventually and return. I now have two. I have had IC and recurrent cystitis for the past 22 years after 3 major surgeries - hysterectomy, bladder fistula repair and again a fistula repair. I have not nothing else wrong with my health over the years - I am now 59. I cannot help but wonder if my thyroid is not connected somehow.