. I has hospitalized with a CPK of 900+. I was held for 3 days until my levels were back in the 100 range. My elevated CPK was caused by a hard fall during a baseball game, plenty of diving around, and poor hydration. The doctors in the hospital said my CPK was high but not worrisome if it would go back down, which it did. The main concern with elevated CPK is kidney damage. The Dr. in the hospital said he saw case of CPK as high as 10,000 without kidney damage. Anyway, sorry I got off topic. As I was recovering and I was re hydrating, the fluids were causing twitches in my legs so severe that I became a member of this site. After being cleared by all the Drs in the hospital, 2 EMG's, and 2 Rhuematologists, they all tell me not to even think about ALS. The anxiety I acquired due to my hospitalization defiantly increase my perception that I have ALS. Try to relax and not worry about the twitching or the high CPK. As long as your heart and kidney check out, that is all that matters. The twitching will stop once your mind is off it.
I was brought to this site in almost the same scenario as you. I let my anxiety make me believe not only was the twitching in my legs ALS, but I convinced myself I had trouble speaking and swallowing. The mind is a very powerful weapon, use it for good!
I still "lurk" here because even tough I know it is highly unlikely I have ALS (age is on my side and symptoms, while some are there they can be anything)I can't convince my brain to change it's train of thought. I get results from a muscle biopsy on Tuesday that will hopefully straighten my A$$ out.
Again, sorry for getting off topic, but don't let anxiety do to you what it did to me. It has completely changed my carefree personality to that of a worry wart. If you are compelled to keep seeking advice here, please listen to the experts (I am not one). There are many caring, knowledgeable, compassionate people here that will take the time to answer and give their feedback. Just be smarter than me and take their advice the first time!