Hello from JA
Thanks for the very interesting question.
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I don't think this is from your medications
Did you start any right before this happened?
Yes it can be toxicity, heavy metal toxicity can act like this.
Polymyalgia rheumatica can do this, a rhematologic problem.
Problems in the cervical spine can do it, best revealed by MRI of the cervical spine.
I would look at all of these and:
B vitamin deficiencies.Autoimmune
As far as medications that might case such symptoms.
clonazepam and desiparamine would be what I would look at carefully.
This would be rare.
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