Weird dreams?

eLLee • Emilee. 25. Married. TTC #1. Follow my infertility journey on YouTube down below!
I've been having dreams of people holding a gun to their head and committing suicide. 
The first one was about some guy I didn't even know hold a gun to his head and as soon as he was about the pull the trigger, my alarm woke me up. 
The second night I had a dream that my fiancé and I were walking in the mall, he started having a seizure and he looked over at me and pulled out a gun and smiled as he put it up to his head and pulled the trigger. 
I would wake up crying because I'm so scared and it seems so real. I was in antidepressants and I stopped because they kept making me feel dizzy. What could this mean?