Hi Chanel. I'm wondering how long you have been on Tamoxifen? In my early weeks I felt much like you. I saw a great GP and started having cattapress for the hot flashes. It has helped. They are still there but not as bad. My headaches eventually went. I think they were worse with not sleeping. I use either Wagners Magnesium Sleep, which also has ziziphus in it (great for hot flushes), or ethical nutrients Triple Action Sleep Support, also great for hot flushes. Both I checked out with my GP as safe with Tamoxifen. I keep them next to my bed. Swallow one & read for about 20/30 mins then am fast asleep. You can redose during the night. I've only done that once. No tiredness or hangover feeling the next day.
If you are feeling depressed it's a good idea to speak with your GP or oncologist or maybe breast care nurse. Perhaps tamoxifen is not for you. I was able to change on to Arimidex after 8 months. I feel so much better.
It's hard and exhausting isn't it. I hope things improve quickly for you Chanel xo
janine