Hi dinster, I've been on tamoxifen since July 2014. I've found it to be ok really. After the first few weeks I did have a short spell of hot flushes, but not very bad ones. That lasted no more than a month then stopped. They did come back for a few weeks last year, but disappeared again.
In terms of mood swings I haven't noticed anything, I think just being in this situation alters you slightly as a person but I haven't blamed the drug.
As for weight gain, I have noticed that I'm a bit heavier than 20 months ago at diagnosis. However, I have also been pretty lazy and I do love to cook, bake etc so although it would be easy to blame the tamoxifen I actually think it's self inflicted.
My periods have also stopped. The thing it has caused for me is a thickening of the womb lining. This is being monitored by regular pelvic scans and a hysteroscopy last autumn. I've also developed a couple of ovarian cysts. This is the more worrying SE, it can lead to womb cancer.
Helly, what an awful situation to be in, that's inexcusable. I remember that post op appt, it was terrifying and I don't know what I'd have done if the results hadn't been back.
Pepper, good luck for Wednesday.
Royal, thinking of you again with your marathon rads sessions.