It's horrible to feel so dazed after...I know that feeling well and I hope you're ok. You could maybe talk to your therapist and between you, come up with some grounding exercises for when it happens. My therapist gets me to move, hands me objects to hold on to and she does exercises like

Name 5 things you see, 4 things you can feel (and touch them), 3 things you can hear, 2 you can smell, one you can taste

That one is really good for getting back to the present and noticing where you are. Sometimes we talk about something neutral for a few minutes too.

Hope you're doing ok