Dee, I am sorry to hear you still feeling funny. I could not help notice that many of the symptoms you describe, "constriction in my neck, palpatations, weak and tingling limbs", can be the physical manifestations of anxiety. These can well be the body's natural reaction to increased production of adrenalin due to feeling afraid and worried about your vision episode. Since you are feeling those sensations, you get more anxious, producing more adrenalin etc, and you get into a cycle.
I apologize if you already know this. I have struggled with anxiety myself - sometimes caused by imagined CHF symptoms, other times caused by nothing at all, but just knowing that anxiety can lead to physical symptoms has helped me in the past, to break the cycle. I hope this helps you feel a little better while waiting for your doctor to get back to you, such that you can get your initial and current symptoms checked out, to make sure all is well.
Best wishes, Karl