TAMOXIFEN - side effect

I have now been on Tamoxifen (Genox) for about 5 weeks. No nausea or headaches but  I have also found that I am alot more impatient but whether too blame the medication or just the whole diagnosis and treatment, unsure.  I have had various bone pains that tend to resolve themselves, it appears that each day I wake and find a different region painful sometimes its my back other times one or both legs.  My new trick is to on waking turn on electric blanket to 3 warm up my bones (gosh sounding like my mother haha!) and then i tend to experience less stiffness and pain when starting my day.

Thanks for info on Magnesium i may give it a try as I still experience hot flushes, they have settled alot though but still need to sleep with a fan on me overnight.  

Rita x