U/S rpt:"Enlarged uterus lobulated contour&multiple uterine fibroids. [email protected] fundus' posterior wall&left fundal wall 3.1cm. Endometrial thickness normal, ovaries obscured byOverlying bowel gas" Any tests/scan/type of surgery recommend?

Fibroids. Are relatively common, and if you are not having any symptoms related to them, probably nothing needs to be done. It sounds like you had a transabdominal ultrasound and your ovaries could not be seen due to bowel gas. This happens occasionally. If your doctor wants to check your ovaries, you need to have a transvaginal ultrasound. If the ovaries are still difficult to see, MRI might be useful.
It depends. Uterine fibroids are common as women get older and get near/past menopause. Most of them cause no symptoms , so they can be left alone. If the fibroids cause significant pain or very heavy menses, then they require treatment. The treatment can be in the form of hysterectomy (Removal of uterus) or some alternative local (new) treatments like vascular emblization. Good luck.