Hello,
The condition described by you here is suggestive of a negative emotional and psychological state which has developed after a significant life event (relationship break). You also report here that these problems are leading to significant distress and impairment in day to day functioning. Hence I would suggest that you please seek a consultation with a psychiatrist or a clinical psychologist near you. Then your clinical condition can be assessed in detail and help be provided to you. As of now, I would believe that a psychological intervention should be able to help you, however need for medication can be assessed after evaluation in face to face consultation.
Hope this helps you. Best wishes for your health and future.
Regards
Delhi Mind Clinic
Next Steps
In the meantime please try to keep yourself occupied, cultivate a hobby, be around your family and friends to avoid loneliness, regular exercise and physical activity will be of help, please maintain regular sleep and waking timings, avoid alcohol or other substances, do not get into a rebound relationship.
Health Tips
please do not delay the consultation unnecessarily as delay can lead to chronicity and complications.