@Unicornkisses My heartfelt sympathies -remember oh so well menopause in my 40s - the only thing I can add is these days women talk about it and that makes it less isolating- I remember thinking I was losing my mind. Re radiation - it does cause engulfing tiredness which impacts on brain functioning which should eventually lift after completion but may take a while. It is frightening not being able to think straight or string together a coherent sentence - talk to your oncologists about it too. Above all be kind to yourself during this period including relaxing some expectations you have of your capabilities and try to go with the flow