That's good you have a date for surgery Top though probably the last thing you feel like doing after 2 lots of cancer treatment but hopefully will improve things for you.
Bookist I also would not bother with Tamoxifen for a 0.5% benefit if that's over 10 years or 15 years or its not much different at 10 or 15 years. As would imagine risks are similar. Though if would be good if they could quantify risks like they do for chemo (mine said 3% risks chemo for Predict though checked and it wasn't risk of death but risk of serious issues from chemo like heart issues). I did look up Tamoxifen and weight gain and although lots of women like me seem to gain weight on it (for first time in life) the studies claim its because you are going into menopause at the same time not due to Tamoxifen. My own results now I am weighing myself I think the Tamoxifen weight gain is fluid / inflammation only and my oncologist said takes 6 weeks for Tamoxifen to be out of body and presumably same length to be back on it at full amount. For my doing this once I found the only difference was the fluid which went off when off Tamoxifen and came back on after it and my weight loss was always equal more or less to calories consumed (exercise adjusted for calories) both on and off it but first month off I lost an extra 2kgs which I think was fluid. But after that no different on or off it. Though 2kgs seems too much for fluid. And I'm no expert just trial and error.
Edema I first got in lockdown and doctors did not know cause, in lockdown just in ankles. In chemo it went into face and neck, assumed steroids as up until this point normal BMI. But I saw some improvement after stopping steroids but restarted on Tamoxifen. Improved off Tamoxifen and went, reappeared when Tamoxifen restarted after a few weeks. I'm only guessing here but only so many possibilities. I hate that the most of everything as you can't hide your face. I looked normal again the time off Tamoxifen and people were so nice to me and I just wished could be off it forever. Other possibilities are sugar but does not correspond with sugar intake at all. Kidneys could be possible as kidney disease stage 2 was detected in chemo bloods but not before and been there ever since though they don't seem to care, very serious kidney issues for my Dad and also CT showed things on kidney. Also they think I have adrenal condition possibly as a mass there for years and cortisol too high in tests but meh I think that's just stress. Its all benign which is main thing. I have been endo test avoiding but just did it a week ago or so. I would love to know what causes it and solve it. Atm just continuing on weight loss and Tamoxifen and its very much there on the neck. Pre chemo I look fine then I aged 10-20 years overnight. I always looked younger so its not that I look old just I don't look attractive like I used to. Especially when added to 1 breast cut off. It gets me down at times not as I'm very vain but its just one more thing and people treat me quite differently. And seeing old photos, current photos, mirrors, people who look like I used to all can trigger that. Oh and hair is still trashed after chemo, had lovely long hair before, came back curly and growing out a lot and so thick and it just screamed chemo at me with the curls. I am getting less down about it and generally am quite cheerful now just need not to think about it and avoid cameras and mirrors for another year until my hair is back and the post menopause weight has gone.
I really hope the inflammation can go too, actually atm I am on a much lower sugar diet and neck is as bad as ever but ankles are normal. Fairy I went cold turkey to cut out sugar totally for a week, this left me feeling like death for a week, shaky, hangry, flu like but it did stop a lot of cravings and hunger. But it wasn't sustainable but did cure me of a few things. I now have no sugar in tea, don't drink coffee (except for 1 before swimming pool at cafe but then am going swimming) and zero alcohol and no sugary drinks. I just drink tea with milk and no sugar and water with lime juice, that's it. That cut down sugar a fair bit as before I had sugar in tea and coffee, a tiny amount of alcohol and lots of elderflower cordial and coke sometimes. This helps with calories a lot and imagine dentist will be happy too though no major dental issues. I have gone back to some sugar in diet otherwise I get like blood sugar crashes but being calorie aware and not just doing a just cake diet. I do try to do days with no sugar but if I feel I am crashing I have something with sugar and then I feel so much better. I have things like bananas, lemon curd yoghurt, a few biscuits and the odd slice of cake. Normally days with biscuits or cake I don't lose any calories unless swimming but that's OK. I am no expert though and its the first time in life been able to cut sugar this much. The whole female side of family has sugar addiction but oddly I am the first female to have cancer and oncologist said no link to sugar. The rest of the females live a long age in good health and its the males who die very young but don't eat much sugar. But sugar isn't great. I do love my sugar though, had an interview once to be a sugar economist and that was such a great job, high pay, tax free, lots of overseas travel to exotic destinations staying in fancy hotels, lots of parties but sadly didn't get it.