Anxiety at PT

Anyone else deal with this? I'm completely fine doing my exercises on my own at home, heels slides, dangling off the edge of the bed to work on my bend, etc. The second I walk into the PT clinic my whole body starts trembling, I'm sweating, my leg is twitching, muscle guarding/spasms, to the point where she can barely touch me. It's not her fault, she's an angel woman. I'm aware that my fear is irrational. She said my homework for this week is to reach out to psychiatry since I have GAD and I'm unmedicated. I'm now debating on whether or not to start an SSRI for anxiety to treat the root cause or to take the Flexeril for muscle spasms that my ortho prescribed, just before PT. I can't take both because of drug interactions.

Anyone else have this problem and what helped for you?