Your body is still trying to get used to the new boobs, that’s all…before whenever you stood up, your body could handle the weight of the boobs, now it has to adjust to the extra, your body just needs to build up the power to carry the weight (hope you understand this as it sounds bizarre) for about the first week I felt like I was suffocating, it’s just because my lungs had to work harder to push out the boobs so they could fill up. Everything is fine, don’t worry 🙂 xx