Can't Trust My Own Emotions Anymore

I hate that I can no longer trust my own emotions. I have been really upset with my boyfriend lately and it has been driving me mad. We talked about it a little bit today, and at one point I ended up listening to voice messages that he sent me the morning I got upset. y'all. it was nothing that would normally upset me. I have been devastated for two days. Thinking the worst. Actually mad at him, being distant, and etc. over nothing absolutely bloody nothing what do you do when you can't trust your own judgement on emotional matters? maybe I really am going mad