Tamoxifen side effects?

Hi,  Well I was to start on Tamoxifen in Jan this year after finishing Chemo and Radiation Treatment.  But you would not believe it after only 2 days on Tamoxifen I was rushed to hospital with Pancreatitis.1 week in hosp. I had this pain for like 4 weeks and thought I had pulled a stomach muscle. Oncologist and Specialist agreed that only short time on Tamoxifen is not related but had to go off it until further notice. They don't know cause (and think maybe Chemo might have done something but who knows). Decided not to take Gall Bladder at this stage etiher and No Gall Stones. So now 5 weeks on and going ok, but energy was taken completely. Exercising (swimming, yoga and walks) now which keeps me sain. So not seeing Oncologist till May to see what they will do next re: Hormone treatment. Sweats - yes getting worse and advised to try Acupuncture.  What a journey and have a long way to go but that is life. Planning to do 15k swim for BC in June to fundraise for well deserved cause.