10 weeks post op breast augmentation under muscle. Is this normal? (Photo)

Your breast are very asymmetric. This will likely not improve with time. Without seeing your before picture it is hard to guess what may be going on. The best thing would be to go see your plastic surgeons as there is far too much asymmetry present to be normal.

It does appear in the photos that the left breast looks fuller.  You should discuss with your PS.  Was there asymmetry preop?  Were the same size implants placed? Has the swelling developed since surgery?  Often, there is perceived asymmetry in the early post op period, but your PS will know your situation better.  

Dear szamora1,photos before the surgery would help a lot. Based on your photo, it looks like you have problem with asymmetry. I would suggest you to consult your plastic surgeon. You will get the best recommendations after a thorough examination.Daniel Barrett, MD, MHA, MS 
Certified, American Board of Plastic Surgery  
Member, Am. Society of Plastic Surgery

Thank you for your question and photographs.  My advice is to wait a full 4-6 months before considering the final result of your breast augmentation.  During this time, implants do settle and swelling subsides.  Your photograph and description is normal for this stage of the healing process.  Best of luck.

The most important question is: does the right breast look like it did before surgery. If yes, then you likely have a deflation on the right. If the right side looks like it should, then you may have a collection of blood or fluid around the left implant.I would recommend that you see your Plastic Surgeon for an in-person assessment.