Its been 5 months since I had FaceTite done, is it normal for it to still be tender and feeling numb?

Whether you had the procedure done under local or general anesthesia should have no impact on the results that you see. At five months out, I would expect that the numbness and pain would be resolved. I had the procedure done on myself six months ago and personally, I feel that I had a nice improvement in the appearance of my neck. If you are dissatisfied  with your results, I recommend that you return to your surgeon for re evaluation.

Facetite can give numbness and sensitivity for up to 6 months.  I suggest RF treatments and neurontin.  With significant neck sagging you would need a neck/face lift with muscle tightening (platysmaplasty). at the same time lasers (fraxel,  co2 or erbium( or microneedling RF (fractora, intensif) can be . performed to improve the crepe skin or wrinkles.  You need a formal consultation, as the neck can be treated with a combination approach:
1. micro needling and lasers for texture
2. botox, disport or xeomin to help platysmal bands
3. intensif or fractora RF microneedling for crepe skin and lifting
4. fillers like belotero, restylane silk, juvederm volbella to improve lines and folds
5. neck/face lifting if sagging is prominent or early starting +/- platysmaplasty (muscle tightening)
6. J plasma/Renuvion, thermiRF, inmode facetite for internal tightening
7. ultherapy and thermage for external tightening
8. regular Venus legacy, exilis ultra, or inmode forma treatments with facials to maintain tightness
9. PDO novathreads or silhouette instalift cone threads for lifting and long-term collagen production
see an expert for a full evaluation and treatment plan based on your individual situation and goals.
Best, Dr. Emer.