1) ALS is a rare disease, and even rarer in a 30 year old female, ALS most commonly affects middle age men. The chances are that this is something other than ALS. This would also be quite rapid for ALS.
2) Muscle tiwtches in the absence of objective muscle weakness and wasting are not suggestive of ALS. Twitches that are more widespread when they appear are also not suggestive of ALS. There are other more common causes of muscle twitches of fasciculations such as an overactive thyroid gland, a normal reaction to cold or exercise, certain medication, a pinched nerve, or some spinal cord problems. There is also a benign syndrome of fasciculations with or without cramps.
3) If you are seeing the neurologist within 1-2 weeks that shoud be fine. In some places people have to wait months for a neurologist (outside the US)
4) As above pinched nerves in the neck could cause some twitches in the limbs, and also weakness or clumsines in a limb or heavy 'spastic legs'. You should have this evaluated most probably with an MRI or somatosensory evoked potentials.
5) Just tell the neurologist all your symptoms, and history - he shoudl be able to narrow down the possibilities to a few that he can then order tests for such as MRI. This is not a formal medical opinion, but the chances of you having ALS are extremely slim and I would try to adjust your anxiety accordingly
Good luck
Do you notice any speech problems? I feel like I have to make an extra effort to make things sound right but I seem to be the only one to notice a difference. The arm, hand and leg weakness is also starting to affect the things I can do with my kids. It is very frustrating. I am also getting quite a lot of cramping in my calves. Good luck also to you and let me know what happens at your appointment.
Just curious. There's an overwhelming "flavor" in all your posts suggesting that this person or that person needs to look into Lyme disease.
If you find you do have a problem , and have good days & bad days , live the good days to the Maxium (makes up for the rough ones)
Take Care , hope you get a good report.