Can it be caused by medicationd that you're taking, not just when you've missed?

A few days ago I started feeling really odd feelings. Like I get super lightheaded and then the tips of my fingers go numb for a few seconds. Other times its like I feel a jolt, of sorts, go through me. Just like with the lightheadedness, I get a jerk in my hands.

I thought that it could be a side effect of a medication, but it sounded so much like what other people had talked about. I've lowered the dose of my Seroquel to start weaning off of it because of the lightheadedness and numbness. I hope it makes them stop. It really is an awfl feeling and it happens SO often!