Lower dose or add buspar??

Any advice is appreciated… I have been talking to my psychiatrist but I feel like she’s not giving me an answer. I have been on 75 mg of pristiq for over 6 weeks. The change from 50 to 75 was difficult for me. A lot of symptoms and added anxiety that I didn’t have as much on at 50 mg. I originally switched because the anxiety was coming back and I wanted to see if a high dose was helpful. Recently I have been extra anxious and I always feel almost on the edge of a panic attack but no panic attacks. My skin often feels like it’s crawling. I am not sure if my anxiety is back and I should try buspar or lower back down to 50mg. 😢