A friend stopped taking tamoxifin in March and is suffering still with severe joint pain and it is Mid May! Anyone else have lingering side effects? AND She has had a sinus infection since February; several antibiotics and steroid prescriptions later and her nose is so swollen, it looks like she got hit with a baseball bat. She has not gotten any sympathy or help from all mds until today. Her onc did some blood work today to try to determine what is going on. FINALLY Lime disease, fibromialgia, arthritis to name a few possibilities.