Vertigo, tingling and numbness

[Melbel]

Hello, I have been suffering from Vertigo and tingling and numbness in toes and fingers for the past week. Today the tingling is affecting my lips and now left side only of my face and also left arm. No drooping or speech problems. Have been feeling flushed however no fever. I am a bit concerned about the tingling affecting my face and left arm. Vertigo is only when I am lying down eg. in bed and when I get up in the morning too quickly or roll over in bed. No rining or buzzing in ears. Throat is a bit dry. Saw dr today but didn't have tingling in mouth, face or arm then. He advised to come back for MRI next week if vertigo has not cleared up. Vital neuro signs and blood pressure were OK today. Should I be worried?