Why might I be experiencing involuntary body twitching and jerking?!

For about 6 months I have been experiencing body twitching and jerking of my arms, legs, feet, and shoulders,and once in awhile my stomach muscle. It is not painful. They are small twitches, but I can visually see them. I dismissed them as a sign of stress at first, but they seem to be a little more frequent now. They only occur when I am resting. They feel like the type of twitches you have when you are falling asleep and your body jerks. But they happen even when I just sit down for a few minutes to rest. The twitches seem to occur 2-3 times during just a minute or two, and continue for as long as I am resting. I started taking Paxil 10 mg about a year and a half ago. My doctor recently took me off of that, which I very slowly went off of. So along with the twitching I am having some dizziness, and occasionally get a quick, zapping, numb type feeling in my lower lip if I turn my head too fast, which so quickly goes away that I hardly notice it. I took more than a month to reduce and go off of my Paxil. My doctor is aware of the twitching, and blood tests have ruled out any thyroid, diabetes, cholesterol problems. I quit smoking one week ago, and am using the patch. I am a 36 yr old female. I was taking the Paxil for PMS, but have gained 30 pounds since I started taking it, a year and a half ago. But my twitching started about 6 months ago,so I don't know if this is due to the medicine or not. I don't feel any other symptoms. I don't feel the twitching when I am up and moving around. I have had Restless Legs Syndrome for 12 years, and I had thought about Periodic Limb Movement which can be related to RLS, but my husband does not say I am doing this in my sleep, and these movements are not waking me up at night. I am only taking vitamins, no other meds, and I am not experiencing any unusual weakness or fatigue. I have an appt. with my doctor again in a few days to discuss this. I guess I am most worried this is a neurological problem. Does anyone have any ideas what might be going on with me? Or any good questions I should ask my doctor next week? I would really appreciate any insight to my problems with this.