still got nowhere?

i first come on here 6 weeks ago, feeling panicky, quit my job..went to the docs, got diazapam, took a couple not really working ...then diagnosed with depression so given lustral....not taking them, scared to.....so went back today and the doc has the right knock with me hes horrible. (changing doctor..too much hassle)...and he gave me citalapram....all i want to know is if they are addictive, am i depressed?......or just a panic attacks sufferer, my doc thinks im depressed and thats causing pa's. i think the other way round.
The last few nights have been experiancing my tongue blowing up in my mouth....almost like suffocation...i know its in my head!...but still feel like im going to die! do i take antideppressants and start councselling like the doc said or shall i do something else, so confused what to do