I love your screen name!
I've wondered myself. Here is my humble opinion and that's all it is, an opinion from someone who had fibroids.
From what I understand fibroids need estrogen to grow. The fact that Lupron (drug that puts you into chemical menopause) made my fibroids shrink considerably, tells me its true. I had bad PMS symptoms for 10+ years pre op, that tells me I was estrogen dominant. Seems right to me. Estrogen feeding my big, BIG, fibroids. The PMS from the estrogen dominance gave me an insatiable appetite that was a huge factor in my gaining 70 pounds in about 10 years. So I think, yes, fibroids indirectly are associated with weight gain. One of the environments that favor fibroid growth can also give symptoms that cause overactive appetite and weight gain.
Having been on HRT for 2 1/2 years I've been able to see the results of different combinations. As far as appetite is concerned, I am able to loose weight when my HRT is balanced
. After I increased my amount of estrogen 18 months ago and didn't up my progesterone I was unable to loose weight after having lost 40+ pounds. It was frustrating, I knew how to loose weight, I was doing things right. Then I started having estrogen dominance symptoms again including the bad appetite. It became all I could do to not gain weight.
I talked to my doc and he agreed to up my progesterone. Within two months I started taking off weight again.
This is just my experience and observation. Hope it helps.
Hope you get your fibroid removal approved!