i've been on C for some time and am lucky enuf to be doing fine.
i know that roids can cause mood swings/disorders for even wks after you stop.

i'd call your dr and tell him what's going on.
if you can't reach him you could probably stop the C to see if you improve.
it can take up to 8 mos for the C to work in your CNS so after only 8 days it won't have had a chance to work yet.

you could also try calling shared solutions and speak to one of their nurses.
and/or you could call the pharmacy that is filling your C Rx. and speak to them.

hope you feel better soon.