[Pirate]

If you are concerned, and you obviously are, find a therapist with whom you can speak openly and safely, and then see where the conversation takes you.
I personally think that your real problem is with porn and not with breasts per se. Porn exploits our bio-chemistry, especial us males, intentionally objectifying and depersonalizing sex, and the result is frequently dependence, declining sensitivity, and erectile dysfunction. These, in turn, play hell with relationships, self esteem, and confidence.
Get professional help and get control of your life back.
Yarrr!