This 'mindful meditation' is that what it recommends? That one be acutely aware of every thought and emotion? That's usually contraindicated for anxiety, generalised anxiety and OCD patients. I'm not your therapist, but...if I wanted to lock my son into 3 sleepless days of anxiety, that's probably a good method. That kind of hyper-awareness...well, that kind of 'ungrounded' for lack of better terms, ungrounded or 'free-based' - sorry - meditative state particularly with obsessive, cyclical thought patterns sounds ... well, I'm really careful to offer unqualified, personal opinions at this point. But the thing that caught my eye and made me to question in the first place was several times you mentioned 'strain', 'mental stress' and such terminology to describe your session. Again, my very uneducated opinion on this, except the father of one who has suffered...that doesn't sound right. Its not supposed to be 'straining', huffing and grinding your teeth - that is definitely going to create anxiety - its supposed to be lightening, fresh, calming...all the other adjectives that so describe. But maybe the therapist has a reason for this approach...hopefully it will turn out to be a brilliant suggestion on your therapists part. Also, pay very close attention to the dates and log, make very detailed notes regarding the day or so preceding the upsurge in anxiety - foods eaten, medications taken ( especially include herbal supplements ), missing doses or delayed doses of some psychotropic meds can have baffling consequences that you'd not think; intro anything new to your diet, even something as innocuous as soy milk or had a lot of sugary cereals one morning just prior? Don't leave anything out. Some of these have a cyclical nature ( as in my son's case ) others are TRIGGERED by external means. They don't just 'happen'; though it will seem like it does...this is exactly what your log is for.