Aww bless you
Don't be anxious about it! I always restrained myself from crying in a session, even if it were a few tears, because I was so scared of how she would react. She's not really a touch-y type of person, so I wasn't expecting her to do anything much other than offer a tissue and ask why I was crying. But she moved closer to me, and before she left, she rubbed my shoulder, which made me feel a whole lot better knowing that she might have crossed a boundary by doing that. And it was all because she cared. :')

The second colleague that came in was VERY touchy however, and she crouched in front of me and put her hands on either side of my legs while I had my head in my hands - SO uncomfortable and awkward.

I'm sure your T will be very supportive though!! And if you need to let it out, don't hold back! I learnt that it's always better just to let it all go - you'll feel calmer afterwards