Thank you for the request.
It is possible for someone to experience anxiety after having therapy, particularly if the person was not being treated for anxiety or they were being treated for a different type of anxiety.
But if the therapy was about the person's pain and hurts from their past, then it sounds like the symptoms were not dealt with. Anyone in therapy should be aware of ways to help themselves through the symptoms should they experience them. For example, if a person presents in therapy with anxiety, the therapist should work with them on how to work through their anxiety including with relaxation techniques, resources such as books and tapes, self help groups and general knowledge on how anxiety works. This will help the person cope when they are not in therapy if they should experience anxiety. But if these things were not covered or not addressed at all, then the person may want to consider seeing another therapist.