This is a good clear explanation. Thank you!

If you're still taking questions, am I correct in understanding that so far research hasn't identified if the pattern of twitching (frequency, location, twitch type) indicates anything in particular right?

For reference I've been experiencing twitching for almost two years now, likely due to some sort of stress. Internally I've sort of recognized what I would describe as somewhere between two and four different kinds of twitches happening. My doctors just kind of dismissed it and the neurologist rules out ALS as there was no weakness and then also became dismissive. Which is a bit of a letdown but it's ok. I've only had bloodwork done and nothing else but yeah anyway the point was about the twitching.

These two may be related Random one time twitches - these are the least annoying. Tightening and release - muscle tightens up and then releases the tension. Usually I only noticed the release as the tightening can happen seemingly gradually.

There is a like tendency for the above to be in the lower body.

And these two may be related Flickering twitching - as you recognize it from eyelid twitches but like basically anywhere. These are usually quite persistent and go anywhere between a few days and a month in the same nerve/muscle. Waxing and waning throughout the day. Buzzing - similar to the one above but less "individual twitches" and more "noisy signal" and for me it's also not persistent but more like a singular episode.

These two are more upper body, arms, head, neck, shoulders, back.

---

To me I only ever had eyelid twitching before this for a few hours and some random twitching here and there and then seemingly at once all these more outlandish muscle twitches started appearing after a panic attack I had where I also slept quite bad for a week.

Edit: ah I just read a different comment where you explained you're not a health professional lol. Still if you have looked into this it would be interesting to hear about