Scared of anxiety and the unknown

Hi Ive only recently been hit with anxiety and its the scariest thing i have ever experienced. Back in February i got a strange feeling in my head and jaw neck area and it scared me so bad i went down to my mom and i tried to remain calm but couldn't my whole body started shaking crazily which made me panic more,

i went to an all night doctor and he tested me he said it might be neuralgia and at the time i had a bad tooth. cut long story short, i went to my family doctor and he came to the conclusion that i have anxiety he prescribed Half Inderal i took that for a month didn't help me i dont think,

now for the passed 2 weeks Ive been on Lexapro and i still feel scared of this anxiety, also im still waiting to see a psychiatrist to help me with this anxiety. The pain i experience is head pain scary, I keep thinking i have a tumor or something fatal in my skull i feel like im going to drop dead any second it terrifies me so much, i have a have neck pain constantly and recently been getting these sharp hot/cold spots on top of my head, also my fingers seem to move on there own and my leg seems to tremor as of late.

Also i feel tired and the other bit is my Ears my throat seems to make them crackle every few mins with i swallow or tense my throat and its really annoying and scary, so im seen a ear specialist soon.

Also before this all started in February back in 2009 i used to get lightheaded when ever i stood up and got up to walk from a sitting position and before Christmas i had vertigo too.

Sorry for the big long message but i had to write to somebody to see if i can get some other ansers asap i cant let this control my life anymore.

Thanks you,

A.S