Will my implants continue to drop and my breasts fluff to look more round, perky and full? (Photos)

I am sorry to hear about your concerns after breast augmentation surgery; I do not think that you are "overreacting". Your plastic surgeon will be best resource when it comes to accurate assessment, advice, and/or meaningful reassurance.  
Generally speaking, there are many variables when it comes to the final appearance of breasts after breast augmentation/lifting surgery.  The main variables, in my opinion are your anatomic starting point, exactly how/where the breast implant pockets were dissected, the size/profile of breast implants utilized, and the "artistry" of the breast lifting performed.  Again, for this reason, your plastic surgeon will be your best resource.
 
Generally speaking, breast implants will "drop" into the pocket that was created during surgery. The rate of breast implant "settling" may depend on factors such as size of breast implant pocket dissected, tightness of the overlying skin/muscle layers, and size of breast implant utilized. Normally, it takes about 3-6 months (for some patients longer) to see the final result.  As the breast implants "settle", the lower breast poles will round out (generally improving shape), and the nipple/areola complexes will seem to sit higher on each breast mound.
In other words, time and patience may be your best friends here. Best wishes for an outcome that you will be very pleased with.

Dear Alyssa,
Your implants will likely settle some more and give you some more fullness in the lower part of your breast (and less in the upper part), and the areola may shift slightly upwards as this happens. They will definitely look more natural over time. Hope this helps and good luck!  

In my over the Rs internet opinion/guess you are almost at full recovery. Best t return to see your surgeon in person to discuss you concerns...