Mine are always triggered by some situation. In the past, when I had a job, often situations at work were the triggers. Lately, arguing with my husband can do it. Very recently an emotional event sent me reeling back into unhealty ideations.

When did the thoughts and feelings start? What was going on when they came up? If you examine your situation carefully, you will discover the trigger. Sometimes meds can put you in that frame of mind. Have you started a new one? Have you gone off any?

Just keep in mind, the thoughts are just thoughts, feelings are just feelings, but you have complete control over your behavior. Please don't act on your thoughts.