Withdrawal of betainterferon

It’s been 11 days since I stopped beta interferon as it has to be flushed out my system have had my bloods done just waiting for the results also had my MRI scan so just waiting for the results so they know wether or not if I can have tysaberie but am feeling so tired over the weekend and absolutely shafted I do t know if it’s due to stopping the beta interferon or nor

My friend did have some side effects when she came of it. She seemed to have more MS stuff which could have been because she’s S/P, it does seem to have calmed down now though.