I disagree that this is an answer.
Withdrawal can vary individual to individual.
It can be severe in some, and that is why we do not typically stop these abruptly.
Go to your doctor or the ER.
There are medications that can ease withdrawal, or a taper can be set up.
I am a double board certified US doctor and will be glad to answer further questions.
Find me, Dr. Thomas, by request anytime.
OK, so that is an initial answer….
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