4 months post breast lift with implants, right side isn't dropping and chest feels tight. Will I need a revision?

Currently 4 months post op. Around 3 weeks post, my left breast dropped seemingly overnight. Since then, I have slowly seen my right breast drop but obviously they are still very uneven. I am able to move both implants in all directions. I do not have any pain. I do however feel a lot of tightness with movement in my right breast. If I flex my chest, you can visibly see the implant shift upward, whereas the left breast stays put. Any hope it will continue to drop, or is a revision in my future?