What are my options for bizarre sudden sagging of face? (photo)

I think that fillers may be a good option for you. At your age, I don't think that surgery is the right option for you.

Facial fillers will work very well for you.  They will help to restore your high cheeks and lift the sagging skin.  Best wishes!

Your age is young for any type of surgery however I advice fillers for regions with volume depletion and Needle RF and PRP injections for skin rejuvenation. 
Hope this helps,
Ali Rıza Öreroğlu, MD FEBOPRASEuropean and Turkish Board Certified Aesthetic, Plastic and Reconstructive SurgeonIstanbul, Turkey

In agreement with other responder, would try non-surgical treatment first.  Thermi-RF (in office skin tightening and lifting with subdermal radiofrequency) works well to tighten skin with minimal (if any) down time, no scars, and is safe.

Cheek fullness and loose skin are typically a side effect of
growing older. I think you could be a great candidate for a non-surgical
facelift. Non-surgical treatments produce almost immediate results, are less
severe than traditional surgical procedures, can be performed in-office with
little downtime, and are great for subtle contouring and loss of volume.



I see many patients for loss of volume in the cheek and
under eye area. Sagging cheek and jawline skin could also be connected to loss
of volume in the upper face, since the skin isn’t sitting as high on the face
as it used to. Treating the upper area can help treat the lower half of the
face as well.



By injecting fillers carefully, a plastic surgeon should be
able to contour and reshape these areas and restore some of the plumpness and
youth you may have lost in your face.