Need help I have major anxiety and am now pregnant

Hi

I have been on Paxil for the last 2 1/2 years 20mg and xanax as needed. I have since I have since found out that I am pregnant.  My MD told me to taper off the paxil (cut it in half) oh wow I thought I was losing my mind. I called the OB to see if I could get a rush apt and was told 3 weeks.  So I saw the OB 2 days ago he took me off Paxil completely and prescribed Bupropion ( wellbutrin) 2 times a day 100mg.  I have done some research and can not find any thing saying wellbutrin helps with anxiety and panic attacks. Does any one know if this will help me or not? Since the medication changes the OB made I have been unable to leave the house I feel sick to my stomach, my head is foggy, my eyes hurt,  I break out in sweats,major racing thoughts, agitation and  I am dizzy and do not fell well at all.  Is this normal? I don't feel as though any one knows what I am going though I really need some advise. 

Thank you!!