How does it feel if i've pulled a muscle under my breast ?

Sore?: Usually a pulled muscle will result in pain when that muscle is contracted or pressure is applied. Did you injure yourself? can you apply pressure to the muscle and feel pain? Pulled muscles will hurt for a while and then feel better. But they can easily be reinjured. Ibuprofen or aspirin work well for pulled muscle. If not getting better or if getting worse see your MD