Tummy tuck a little over 10 weeks ago, right side looks a whole lot bigger than left. Is this normal? (Photo)

Healing after your tummy tuck or abdominoplastyUnevenness can exist for a number of reasons including preoperative asymmetriesIf liposuction was performed, this can contribute to the problem.Prolonged fluid or drainage can also contibute

It can take up to three months for the swelling to subside after an abdominoplasty.  Sometimes even longer.  However, swelling tends to be relatively symmetric.  If one side of your abdomen is noticeably larger than the other, it might be a sign of a persistent seroma.  Small seromas are quite common, and typically resolve on their own without any treatment apart from compression.  Larger or persistent seromas require aspiration in the office.  Infrequently, it becomes necessary to place another drain.  Seromas are typically diagnosed with physical exam, and can be confirmed by ultrasound.  

Thank you for your pictures. It's hard to tell what this.  It may represent residual swelling, differential thicknesses of your skin/fat on one side versus the other or mild weakening of your muscle repair.