What can cause arms and hands to jerk shake also lose dexterity in for seconds at a time causing me drop things. Also lot of numbness hands?

There are several potential causes for the symptoms you are experiencing, including:

- Cervical radiculopathy: This is a condition that occurs when the nerve roots in the neck are compressed or irritated. It can cause pain, numbness, and weakness in the arms and hands.

- Peripheral neuropathy: This is a condition that affects the nerves outside of the brain and spinal cord. It can cause numbness, weakness, and pain in the arms and hands.

- Parkinson's disease: This is a neurodegenerative disorder that affects movement. It can cause tremors, rigidity, and bradykinesia (slowed movement).

- Multiple sclerosis: This is a chronic autoimmune disease that affects the central nervous system. It can cause a variety of symptoms, including numbness, weakness, and fatigue.

- Stroke: This is a sudden loss of brain function due to a disruption of blood flow to the brain. It can cause a variety of symptoms, including numbness, weakness, and paralysis.

If you are experiencing any of these symptoms, it is important to see a doctor for evaluation. The doctor will be able to determine the cause of your symptoms and recommend the best course of treatment.