I am experiencing arm weakness. The following also describes me: Muscle weakness and twitches. What could that be from? I recently had lab work and creatine kinase levels came back at 225. Nervous on major neuro issue like ALS

Go see a neurologist. Hopefully you have an appointment with a neurologist to evaluate you soon. Arm weakness and twitches can be caused by a number of things and you will probably need more testing to determine a cause.