Hello there. I'm sorry to hear of your problems. It must be quite hard on you given the circumstances. From the limited description that you have provided there are several possibilities that need to be considered. It would be best to consider a psychiatrist for a proper assessment. Sincerely hoping that your husband gets better.
Next Steps
Please reach out to your psychiatrist immediately and explain your difficulty. Your doctor will do the needful.
Health Tips
Perhaps it is possible that your husband may not be willing to visit a psychiatrist. Do not get disheartened. It would help even if you visit alone and provide a detailed history following which your doctor would be able to offer an appropriate advice.