I find that don't write as well as I used to. My hand will also double or triple type letters when I am texting.

My left hand is shaky at times. I cannot write it’s messy. I can text.

My hands shake little when writing, however times my hand is really shaky to even write something to legible.

It is possible it is side effects from your medication. Some seizure medications have tremors as a side effect and your hands or other parts of your body may uncontrollably shaking. I have had it with a few medications.

This may be a Myclonic seizure. Talk with your neurologist about this symptom. Myclonic seizures are only a couple of seconds long.