Hi there. So, nipples can be all different shapes. This is just the natural shape of yours. Have you had a breast exam by your doctor at any point. You can ask but this is really something that I would say isn't abnormal.
If what is worrying you is breast cancer, don't be. You wouldn't get two nipples with the same shape and issue if the thing that made them pointy was cancer. It is possible that the weight of your breasts pulls on them in some way.
This is from breastandbra. com, and it makes the shape of your nipples not sound like a big deal.
"Areolas are as different as fingerprints, no two are the same. Some women have almost no areola while others have areolas covering half of their breast or more, especially during and after pregnancy. Aeolas can range from none to 8 inches in size.
"The shape of a woman’s areolas can range from round, oval to almost no shape. Some women have areolas that are wider in some spots than others. This is 100% normal and nothing to worry about."
Most women have different size and even shape breasts, they are never perfectly matched. I am sorry you do not love the way your breasts look! I will say that while this is important and I don't minimize it but your breasts are going to change over and over again. My breasts no are totally different than they were in my teens which were different than my 20's which were different than my weight gain in thirties, during pregnancy and nursing and where they are now. including nipple changes. Men judge FAR less than you think and porn is fake . . . so real breasts are each unique and just fine as they are. I hope you start to internalize that sooner rather than later but again, don't minimize your feelings. good luck
Gosh, I do understand being too big. That is uncomfortable for your back and for all the staring guys do. Insurance does often cover reduction. My good friend had it done, fully paid for that way and she was SO happy after the fact!