I’m so sorry to hear you are having such a horrid situation. Hang in there. You can do it. Hope the hospital visit can give you some answers. But also, whilst it is true that sometimes a diagnosis cannot be found, can they work towards some kind of treatment like pain management, diet, counselling to help you manage the situation. If no diagnosis forthcoming, word up the person supporting you to help you ask about how doctors can help lessen the symptoms to improve your quality of life. Perhaps they can refer you to a pain management specialist? A physician? I very much hope you can find some relief.