Hello, the symptoms described by you here are low mood, mood swing, poor concentration, anxiety/stress, headache and forgetfulness. These symptoms seen together are highly likely to be related to an ongoing depressive episode. My strong suggestion for you is to seek a psychiatric consultation near you for comprehensive assessment and further management. Treatment by methods of medication and psychological intervention is going to help you. Specifically in presence of
diabetes mellitus type2, a comprehensive medical and psychological assessment is required.. Di not delay help seeking, and try and get yourselves back to your previous self.. Hope this helps you.. Best wishes for your health..