Thanks for your query, I have gone through your query. The swelling following in jaw after TMJ surgery can be of inflammatory origin or it can be secondary to damage of lymphatics. It is common after surgery, it will come down in 3-5days. Mean while you can take analgesic with anti inflammatory drugs like diclofenac and serratiopeptidase respectively. The dizziness can be because of the adverse effects of the drug lyrica. It is a sedative drug. I hope my answer will help you, take care.