Paxil and Trazodone. Stupor

I am taking Paxil 37.5mgCR ( which is up from 25mgCR). I am taking Trazodone 25mg to 50mg. I use 50mg if the 25mg does not work. I am waking up extremely drugged, in a stupor, and confused when I take the 50 mg. After about 4 hours I clear up. But mornings are hell. My hands are shaky. My Psychiatrist is useless, and states that I should just stay the course. But something has to change. Are these two drugs fighting with each other or do they work together? Do I have serotonin syndrome? How does a person know? My PCP suggested Hydroxyzine instead. I tried it and it worked, however after two days, I felt a real tension in the back of the brain. Is that trazodone withdrawal? Has anybody else out there gone through these drugs? Sorry for the many questions, but I am exasperated and trying to get answers. I finally found a great psychiatrist, but she is not available until August. Don't know what to do.