Well mental health is no joke and there are quite a few people in the world who gets frequent panic attacks.
But it is sad that this premise is being used to show a very nominal situation as intense. The panic attack when Anupamaa was kicked out of the house before her divorce was understandable as she was gaslighted into believing she has nowhere to go. So was the attack after Vanya exposition. But now seeing her panic attacks every time Shahs insult is seeming more like a cheap trope.
Also why exactly is she getting an attack, just because Pakhi got married? It seemed like she got news of Pakhi getting some kind of terminal disease. By doing that she revealed that not just Vanraj, even she was never willing to give Adhik a chance. Pakhi is still with the family and not eloped and can be rescued if Adhik actually proves to be a bad person. Is the panic attack because she doesn't want Pakhi to be divorced? Hypocrisy much??