Can I get a tummy tuck done w/mesh already inside me. I've had hernia repairs

Likely you would be able to have a tummy tuck despite the previous mesh placement.  Many factors contribute.  Was the mesh absorbable?  Do you have recurrent hernias?  Was the blood supply to your belly button compromised during the mesh placement?  Consulting with a board certified plastic surgeon in person is essential in making this decision as an exam and possibly a CT scan is in order.  Additionally that plastic surgeon will likely need the operative notes from the surgeon that performed your initial surgery.  

The answer to your question is probably, but no one can give you a definitive answer without an exam. If you do not have any recurrent hernias, a tummy tuck can be done. There might possibly be a small increase in the risk of infection depending on the type of mesh used and whether it spans across a large hernia or was just used to bolster the hernia repair after they closed the fascia. I would recommend that you consult with a board certified plastic surgeon who can examine you and review your op notes from your hernia surgery.

It is not unusual to perform tummy tucks on patients who have had hernia repairs and many of these are repaired with mesh. Having said that, there are circumstances that may compromise the result or make a tummy tuck ill advised. Only an evaluation with a board certified plastic surgeon can provide you with the answer for your personal situation.