Hello! Welcome on Healthcaremagic! You should know that your symptoms are quite normal at this stage of the disease. They are caused by chronic progressive damage to the brain. The main cause of the disease is very complex and it is not just one cause. It is related to chronic inflammation and an autoimmune response of your body, triggered by a possible infection, leading to progressive demyelination and cell loss in the brain. In the advanced stages there is more prominent brain cell loss. That is why your situation is worsening in a progressive way. Anyway, the drugs are not very effective at this stage. A lot of physiotherapy and a balanced diet are the main treatment to reduce the progression speed of the disease. Hope you will find this answer helpful! Best wishes, Dr. Aida