EMG testing - how reliable?

Haven't gotten any responses yet, so I thought I would re-post...many thanks:

Hi,

Thanks so much for taking the time to address my question/concern.

As previously posted, due to an onset of twitching in early August (after beginning an anti anxiety medication and during a period of very high stress), I had both a neurology consultation and TWO rounds of EMG testing. The EMG testing was done in the middle of and at the end of September. The needle insertions were done on my left arm (four spots), left leg (four spots), upper back (two spots), neck, and jaw. All results were normal - there were no fasciculations, fibrillation potentials, positive waves, etc.

Now, just over a month later, and unable to fully accept the results of the testing, I am having the sensation of my left upper arm feeling slightly sore and/or fatigued. It does not keep me from doing any of my daily activities, which include push up exercises, and other exercises of the like.

On to my questions:

1 - how reliable is EMG testing in detecting muscle denervation (ALS is my fear, in particular)?

2 - if the EMG on the left arm was completely clean, can I rest assured that whatever soreness and/or fatigue I am feeling in that arm now is either perceived, or due to some other cause?

Thank you again for taking the time to answer this.

Oh, lastly, I am female, 34 years old

[colls22]

anyone? is there anyone who can provide any insight?

doctors?! are you there?