I went through a phase like this as well, Sarah. I hardly ever cried in the first few years of seeing my T, then I went through a phase when I cried a lot, with T and also at home. I think I was going through a time of grieving. I had two bereavements in my close family, but as well as that grieving for other things from the past.

Someone once said to me "Don't be afraid if you cry a lot, those tears are healing", and I think I can look back and say that was definitely true. So although it's a sad phase to go through, I think it might be a good sign as you are grieving over certain things and it's an important stage to go through.