Any advice for me? I feel broken and have no hope.

I used to run half marathons and log 30 miles a week running. This was before my issues began.

Now, I’m 5’7” and 190 lbs. my back kills me when I do anything, and I get really dizzy when I stand up. The dizziness started happening the middle of last year, and fainting, so I haven’t done much for a year. I am also in menopause and the weight has just kept going and going up. I don’t eat much because I am just not hungry. Is there any hope for me? I want to be 135. I weighed this for most of my life, even after I had my two kids. I feel like my back pain is directly related to the weight.