benign twitch or something more?

hello all. I have a question, i've also posted under anxiety/panic disorders.  I am on an anti depressant, but it's been 4 or 5 months. so the side effects shouldn't be here anymore.  So i'm curious, or maybe i'm overreacting from looking up symptoms, but i do have minor twitching of my muscles all over the place, but recently think i've noticed it more since i've paid particular "attention" to my body since this instance i had last week.  I too had read a while back, about michael j fox and his first symptom being a pinky "twitch".  I type for a living, and frequently catch myself leaning on my elbow, reading, or may have had my arm over my chair etc. which cut off circulation. but i had a pulsating feeling in the left side of my left hand, right along the pinky line.  i looked down and my pinky was twitching.  i massaged it, and it stopped after minutes.  it wasn't a tremor, and hasn't done it since.  would a pd symptom, stop and not come back for over a week?  and does it have to be a "shaking" or tremor ....  am i overreacting from my sensitivity to this subject?  any advise i REALLY appeciate.