hi. Good day. I am 33 year old and just last November, 2015 i did a breast ultrasound and it says that (Left Breast: Well-circumscribed, oval, hypoechoic solid nodule (1B) = 1.5 x 0.8 x 1.2 cm. No enlarged axillary lymph nodes seen bilaterally, IMPRESSIon: Left Breast solid nodule BI-RADS Category 3: Probably Benign findings. Short interval follow-up is suggested. After that, i went to my OB-Gyne to check then she says that there is nothing to worry about since it is benign but she referred me to a surgeon to double check. Then i went to a surgeon and the Dr. said he cannot feel any cyst or nodule in my left breast and wait to check again after 6 months and gave me pain reliever if im in pain. since then, I m worried and asked again other dr. which is OB-Gyne near our place last January since it was the time I felt pain again in my left breast then she advise me to make a mammogram even if i m less than 40 yr. old. Should i be much worried about my case?