Hello, Your description of poor slwep, excessive and negative thinking, body ache, breathing difficulties, getting lost in own thoughts, easy irritability, and mood instability does suggest a need for detailed assessment. Your symptoms may be suggestive of depression, obsessive compulsive disorder, adjustment disorder, anxiety disorder etc. Hence a comprehensive assessment is required to understand your condition better. Hence my suggestion for you is to seek a consultation with a psychiatrist near you for comprehensive assessment and management. However please be assured that your condition can be helped with proper guidance.. Hope this helps you. Best wishes for your health and future.