Hi, I too took tamoxifen for 2 1/2 yrs have sinced gone through surgical menopause and have switched to aromasin. I never experienced any of the symptoms that you have, but everyone is different. If I were you I would let my doctor know of this, it may be nothing at all but let the dr. decide that.
how much longer will you be on tamoxifen? have you gone through menopause yet?