So-called "anatomical" implants are teardrop-shaped (more) cohesive textured-surface implants designed to shape the breast and give a certain post-operative appearance, rather than "filling" a breast whose shape is not being altered by any sort of lifting or skin-reducing incisions. Unfortunately, when you are reclining, "anatomic" teardrop-shaped implants do not flatten, become round, or drop to the side slightly (like normal larger breasts do), but rather remain upright and tear-drop shaped without much movement (if any). The latter, I would suggest, is NOT anatomic, whereas round smooth implants are teardrop-shaped when upright, and become round, drop slightly to the side (in a non-contracted breast) when reclining, and both look and feel more like a "natural" breast. Thus, round, smooth silicone gel cohesive (not as cross-linked and firm as the teardrop-shaped, "gummy-bear" implants) implants are actually more anatomic than the ones you (and your surgeon) selected.
Did you see an ABPS-certified plastic surgeon? What specialty did her or she train in? Your research should always be tempered and refined by the input of one or more experts in the area of cosmetic breast augmentation (and you must beware of the self-proclaimed "cosmetic surgery" expert). Research your surgeon, and trust only those who pass muster, especially if you are considering secondary surgery! Best wishes!