I am sorry to hear about your medical problems. If you look at the broader picture then the symptoms could be due to MS, muscular dystrophy, benign intracranial hypertension, Parkinson’s disease, brain or spinal cord injury.
Also, a detailed eye examination should be re-done to look at local causes such as glaucoma. Also specific eye tests should be done to see if the optic nerve is involved—happens in some cases of MS.
Diagnosis of MS is complicated as no single diagnostic test is confirmatory. However, more than 90 percent people are diagnosed based on MRI only, which shows multiple demyelinating plaques. The number of plaques increases with MS flare. Neurological examinations reveal weakness and other signs. Evoked potential tests are done to diagnose nerve weakness. Lumbar puncture or spinal tap is also confirmatory for MS in 80-85% of the patients showing signs of chronic inflammation and oligoclonal bands. Sometimes, a diagnosis is reached by excluding all other causes. Vitamin D and B12 deficiency also produces symptoms like MS, and hence these are ruled out. Take care!
The medical advice given should not be considered a substitute for medical care provided by a doctor who can examine you. The advice may not be completely correct for you as the doctor cannot examine you and does not know your complete medical history. Hence this reply to your post should only be considered as a guiding line and you must consult your doctor at the earliest for your medical problem.