I'm right handed. Is it normal for the left side implant to feel more tight?

Sure but also remember that no two breasts ever look the same and no two breasts ever heal at the same rate. It's normal for one to feel tighter than the other. Just give yourself adequate time to heal (I tell my patients it takes a good 4-6 months to see your final shape to allow all the swelling to resolve and to let the implants drop and settle some). Best of luck for great results!!!

While use of the right pectoralis muscle in a right handed person after augmentation can lead to tightness and discomfort on the right side, such discomfort on the left is just as likely due to slight differences in swelling, capsule formation, or contracture, depending on how long ago your surgery was performed.  Please address your concerns with your operating surgeon.