I'm not in the UK. I had a similar sort of situation. My long term T got MS and quit working. So I stopped seeing her obviously. A couple of years later she started practicing again. (I saw that she was on Psychology Today.) I contacted her to see if she would work with me again. She said no. It broke my heart.

I hope that your former T will reach out to you. If she doesn't, and you choose to contact her, I hope that she will see you or give you really good reasons why she won't. HUG if wanted. Kit