Hi Nowler,
You are not alone. My own story is shocking similar.
I developed in jr high. I was picked on, bullied, and today we would call it assaulted. After I reached adulthood, I started to put on weight. Over several decades I ballooned to 330 lbs. This also increased my breast size but at least the stomach hid a lot of the look. But all "good" things must come to an end. Eventually I was told that I had to lose the weight or in the near future I was headed for a stroke or heart attack or both. After almost 100 lbs lost, my breast volume hasn't decreased much. Keeping my now more obvious bust hidden was getting harder and harder if I didn't want to wear clothes two sizes too large. My old fear was rising as my stomach shrank and my breasts became more prominent and now due to volume and weight moved uncontrollably. Eventually the discomfort grow to the point I had to do something. I found that surgery was not an option that was viable. After consultation, I started trying different compression and binding vests and soon realized the movement was less painful than the compression and binding vests, but the look and the controlled movement was drawing unwanted attention. While seeing a doctor another issue, I finally got my courage up and broached the subject of my breasts. After several sessions, she suggested I try a sports bra. I did and found the support brought comfort. Over time the compression of my breast tissue became uncomfortable due to the time I was wearing such a tight garment. I once again got my courage up and decided to try a regular bra. To my surprise, I noticed that my appearance was not drawing attention like it did when unsupported and I was much more comfortable with the correct support of my breasts than I had been in years. That was several years ago and I have been wearing a bra ever since and I very rarely get noticed. I also don't wear clothes that draw attention to my chest and I can go through life pretty normally.
The point I am trying to make is breasts are not a death sentence and surgery is not an absolute and you can have a good life with breasts. Many of us are doing it every day. Did this "comfort" happen overnight for me No, it took time, to get used to the idea because society has dictated men don't have breasts and so don't wear bras, but that isn't true. We know that. Don't let your body get you wound up. Because you have breasts doesn't mean you are different. Everyone is unique. Your breasts are one of the many wonderful unique things about you. Good luck.