Should I continue taking this new prescription, or should I stop and call my doctor on Monday?

I filled three new prescriptions yesterday/today. I’m very wary of taking any sort of medication, so I decided to start the scripts one a a time to see how I feel about them. I started with the Lexapro early in the afternoon. Shortly after taking the pill (10mg), I felt exhausted and my limbs were heavy. Very sedated. I figured that would pass, and I would just take the medication at night. Soon after that I started to cook dinner and I was incredibly dizzy and lightheaded. Then nauseated, but I did not throw up. That soon passed. I spent the rest of the evening feeling very lethargic, so I went to bed early. I felt alright while I was sitting up in bed, I watched some TV and got on the laptop. Still tired, but, I felt okay. A little bit achy, but otherwise just tired.
However, when I would lay down to try and sleep I would get this horrible crawling sensation all over my skin and I couldn’t stay still for the life of me. Not your normal run of the mill tossing and turning, I was like uncontrollably writhing around in my bed. When I would force myself to lie still, I got these very strange visions in my head. I’m not sure how to describe it, but they were just very intense, vivid images that were shooting into my mind. Nothing specific, a few times it looked like a sharp, black hole racing toward me.. another time it was something zig-zagging very quickly toward me. They were very disruptive and unnerving, I don’t know how else to explain it. Anyhow, after an entire night of being miserable in bed, I decided to just give up and come downstairs.

Needless to say, I’m still awake, and I feel like crap in general. Not to mention that this medication is tearing up my stomach, so that is just another perk. I don’t even want to look at another pill, let alone continue taking them. Should I try to make it through the weekend and then call on Monday, or should I stop taking them and then call on Monday?

Sorry, I tried to make this post coherent. I don’t feel much like myself, I’m having trouble focusing my thoughts. Any suggestions or input, or even personal experiences, would be appreciated. This sucks.