I Am Experiencing Nerve Paralysis, Tingling And Numbness In My

I am experiencing nerve paralysis, tingling and numbness in my right hand, tip of tongue, crotch area/testicles. I recently had blood test completed for and was advised by my doctor we are over-treating my thyroid with Methamazole. My medication was recently changed and lowered from 15 mg per day to 5 mg per day. This nerve pain started before the change in medication. Is the paralysis associated with my thyroid or a symptom of another issue?