Yes, most definitely. Still makes me feel horrible as we delve deeper. Then, we back off a little, let things settle, and then dive back in. The key for me is to look back a week, month, or year ago and see the progress I am making. It's hard to remember to do, but it does help. Two years ago, I could no longer sleep or read or do anything but keep an active watch while riding in the car. Now, I can do crafts, read, and occasionally sleep. That's just one tiny examples, but it's huge to me because those were things I could do before. Do follow your instincts though and when things seem to be too overwhelming in therapy, back off a little and take time to notice the progress. You don't want to do too much and overwhelm yourself too much.