I feel like I am going to snap, whatever that means

I am never going to lower my dosage of medicine again. I'm going to see my doctor. I'm so angry and irritated at the most minor things people do. My anxiety is out of control. Every day, I want to cry, and my thoughts of suicide are back. I was this person for so long, and the fact that I'm feeling this way again is scaring me.

All of this so I could supposedly lose weight according to her.....