Just need to get this off my chest

About 3 weeks ago my left arm started twitching. first my triceps then my shoulder. Then both calves started twitching and have not stopped since. I get vibrations in my foot arch. My head vibrates like an Iphone during the night only when I wake up from sleeping and nothing during the day. I get little Random twitches all over my body but mostly confined to my left arm and calves.

My left arm seems to twitch after I have done weights work out. For instance, yesterday I trained forearms and today my left forearm is twitching. My calves twitch 24/7 regardless of what I do.

I got blood tests the other day last week and the only issue was a vitamin D deficiency for which I'm taking supplements.

My left arm sometimes can stop for a day or so, especially if I'm not doing any weights.

The doctor said to come back in a few months to see If any other symptoms arrive. I don't think he took any of this seriously. I don't have any weakness as I'm still doing the same amount of weights as before.

Any ideas as to what is going on? I do have lots of anxiety issues.