I have slightly blurred vision, numbness in hands and legs?

Male:26 years old. Symptoms started 3 months back.1) Floaters in eyes (have increased and permanent),slightly blurred vision,sensitive to brightness & light 2)Very mild tremor in hands 3)Occasional numbness in hands and legs (Now better) 4) Bilirubin level very slightly high (1.1) (now below 1 i.e 0.5-0.6) 5) Little fatigue (Now better)
) Had very minor rash on both shoulder and nose (skin colored and non itchy) still there. HIV, HCV, HBV, HAV all negative.. kindly suggest what it is and what test you recommend.