Hi
For me duloxeteine didn't seem to do much except increase anxiety if anything, and like you I stuck to 30 mg. To be honest I wasn't sure why the doc put me on this med. I had previously been on Paxil for quite a long time and it did a great job with the anxiety, but then I decided I wanted to come off all meds so I stopped them gradually. After a few months I ended up back with the doc and he suggested cymbalta due to low side effects.
I've now only started venlafaxine as I thought it would be an easier transition than back to another ssri.
I must say, so far so good, much better results for anxiety than duloxeteine/cymbalta, which is strange because they are both so similar I.e the nonrephenerine.
How long have you been on the duloxeteine and how was you're experience on the citalopram and Sertraline ? I've heard good things about both in regards to anxiety. I'm going to see how it goes with the Ven, but the test will come if and when I need to up from 75mg.
Regards
Tims