Could a practitioner be able to tell if you’ve had filler in your lips before? By looking or feeling?

It is impossible to know if your under lip 'bags'/fullness is due to fat or muscle. But either way it can only be removed by direct excision using the vermlion-cutaneous junction as the incision location. 

Hi, I am sorry you have been dealing with this.  I recommend that you see a board-certified plastic surgeon in your area for full evaluation and treatment. 

Hi @NinaDixon! I would recommend at least 3 syringes for the desired lips shown above. I would recommend 1 syringe per session 4 weeks apart to prevent overfilling. Restylane Kysse and Defyne work great!