Hi Valentine,
Welcome to the forum. Your depression is not your end. You can beat this and will. Depression runs like a roller coaster. We have our ups and downs. When you are this deep in the blues, you should call your therapist or doctor.
When pain is such a contributing factor the doctor should be notified.
If you don't have a counciler or therapist yet, perhaps it is time to get one to talk to.
We are always here to listen, lets us know how you are doing.