I have similar issues, primarily in right hand and fingers I’ve traced thru cause and affect that it’s either been my potassium, magnesium, and dehydration.

You said levels blood test came back normal, but are they normal for YOU. Do u have old bloodwork to compare to? If u do, u should look. If not, bump them up to see if it is.

Also, I take baclofen for spasms and found that it will actually cause spasms and twitching in my hands, again, primarily in my right hand index/middle finger.

It’s almost impossible to to text when those types of spasms occur!

I wish u the best!