5.5 weeks post op. Still high and firm with asymmetry. Is this normal? (Photo)

It's still relatively early following your breast augmentation.  Now you are about 7.5 weeks post-op.  I find the breasts continue to soften and settle for at least 4 months.  Also, almost all patients have some asymmetry before the surgery which translates into a little asymmetry after.  Have a look at the following, it will probably make you feel better:

You are still early in the healing process. At our practice we have patients massage the breasts down in addition to placing a band on the top of the breasts to help the implants settle. Typically it takes 3 months for implants to settle into place. Be sure to follow up with your plastic surgeon for post operative care. 

Your early in recovery and your implants should drop further in the next 2 months.Ask your plastic surgeon if vigorous breast implant displacement exercises, pectoralis tightening exercises and a superior pole wrap can help accelerate the dropping of your implants.  If they have not moved by 3-4 months than a simple pocket release may be required.