So sorry to hear about your symptoms. These are certainly abnormal, and not something that should be ignored. Your doctor
will likely be able to help you with these symptoms, fortunately. So please discuss your concern with your doctor. Increased mucous production is usually a sign that the mucosa of the body is trying to defend itself from some sort of irritation. One of the most common causes of this irritation is post nasal drainage, and so treating post nasal drainage can be helpful. Sometimes this may require visiting a rhinologist, who is a subspecialist within the field of otolaryngology-head and neck surgery
(AKA ENT). Another common explanation for increased mucous is gastric reflux disease, which can chronically irritate the back of the throat and lead to increased mucous. Some people will say that this improves over the course of the day, but is associated with a bitter taste in the mouth upon waking up. This is something that can sometimes be treated empirically, meaning that your doctor may try treating reflux on the chance that it might make your symptoms better and it is a common explanation. There are many other explanations as well, and so speaking with your doctor about this is likely a good start. Again, please speak with your doctor.