TRE Trauma Release Excercises

[Eyessoblue]

Hi has anyone done TRE to release trauma?? I've had 3 sessions, the first 2 were ok where just my legs shook uncontrollably for 5 mins, yesterday though I really didn't like what happened, I spent the rest of the day and night still shaking uncontrollably, I was sick, had flashbacks panic attacks and severe anxiety. Ended up taking some beta blockers which I hadn't taken for months to calm me down.
The experience I feel has left me in a really bad place now, I've googled as much as I can about it but can't find anything about this or side effects etc.
Just wondered if anyone else had done tre and had a similar experience ?