Anyone had tamoxifen withdrawal symptoms?

I have also stopped Tamoxifen after 6 years. The emotional side effects are horrible! I feel like Im in a constant state of high anxiety and fear. Mood swings and sweats are here too. I was also on Welbutrin, so maybe I am having withdrawl from both. I quit because my health insurance was cancelled, but should probably take a small dose of each and taper off. Anyone else have this issue?