My thumbs and small fingers on both hands are twitching, my neuro induced fasciculations on both hands, recommended emg and now I am really scared. ALS?

Many possibilities. There are a myriad of possibilities causing fasciculations, some of which are normal. Before assuming a diagnosis, it is better to be evaluated with the nerve conduction and needle exam (EMG) which can help localize the issue, if there is one. Some sort of imaging study (e.g. MRI) will also most likely be required for a full evaluation.