What happened?

Everyday I cry. My level of stress and anxiety have been overwhelming and exhausting. I've fell back into depression. I feel like my life has no significance. Tonight I cried so hard. I don't know if I had an anxiety attack or not. My whole body tensed up I lost my breath. Getting air in my lungs was like breathing through a coffee straw. My fist clinched up and the tears just continued to roll. I was hot all over and my heart was beating so loudly it almost seemed like tiny people were beating on my ear drums (that's been happening on and off for a few weeks now.) I was in a trance like state. I never experienced this before. It took awhile for me to calm down and finally take a deep breath. I need help.