Some patients with pelvic organ prolapse are asymptomatic, while others are symptomatic. Clinical presentation depends somewhat on which organ is drooping and may include pelvic discomfort, sexual dysfunction, urinary disorder, and/or fecal disorder. If you are experiencing any of these symptoms, you should see your gynecologist for further workup and evaluation, including pelvic exam. Complex cases may benefit from additional tests such as dynamic MRI pelvis, which is taken at various stages of rest, stress (Valsalva), and evacuation (defecation), the latter which accentuate the prolapse.
I don't have any personal experience with prolapse. Pelvic floor exercises and weight loss are not helpful, you could always get fitted for a pessary instead of undergoing surgery. I have heard that some can be left in for months before removing and cleaning. I have also read that prolapse surgery has a fairly high failure rate so you would not want to undergo surgery without trying all other options first.
One thing I find perplexing is that many women who go in for prolapse consultations are told that a hysterectomy will be done at the same time. Hysterectomy increases your risk of prolapse (as well as causing a number of other problems) so you certainly wouldn't want that!
Best of luck in addressing this!
This is the patient version of the evidence-based online resource called UpToDate that many doctors use:
This is the practice bulletin from American College of Obstetricians and Gynecologists (ACOG):
Surgery should be left as a last resort only if the symptoms start to bother you.
Pelvic floor exercises - done correctly with the help of a good pelvic floor physio, weight loss, diet to avoid constipation, avoiding heavy lifting etc. will all help to slow the progression of the prolapses. A consultation with a good urogynocologist might be something to consider to see what he/she can suggest. Hystersisters is another website which I find very helpful dealing specifically with such problems.
This site has some good info too - https://wholewoman.com/.