Should I still be having pains after brain surgery for trilgimal neugia he even did a partial nerve cut. I had a menigiomia tumor on the T nerve.?

Pain. If you have pains similar to the pains before the surgery it may be that the surgery did not really help. If the pain has changed in nature it may be transient following surgery and it should resolve with healing. Regardless talk to the doctor at your follow- up visit.
Face pain. Yes. Trigeminal neuralgia can be difficult to treat. When a tumor such as a meningioma has compressed the trigeminal nerve, there may be persistent pain and numbness. Sometimes the numbness may feel like ants crawling on the skin (anesthesia dolorosa). Generally, the pain and numbness will dissipate over time. If not then cortical brain stimulation is an option. .