Hi @creeder, yes I gained weight on tamoxifen. The trade off of no estrogen feeding my cancer, was instant menopause in my 30’s. That meant weight gain, my horses looked at me as if to say “really?”, I managed to keep it reasonable by eating smarter and increasing my exercise but I did gain anyway.
I lost a ton on chemo so I had a bit I could gain back before it was a net gain. Then I lost most of that after I started anastrazole. Then when I quit smoking 7 years ago, the battle of the bulge began again. That’s when I gave up and put drawstrings in all of my skirts.
To answer your question, I do feel it was worth it, to keep the cancer at bay. Like you, my weight was important to me, but at a point I had to learn to go easy on myself. Being fit is important, but if I let the cancer grow then what will the weight matter. I am glad I finally quit smoking too, but it sure added to the struggle.
How long have you been on tamoxifen?