Suggest Cure For Multiple Ailments

Hi, can you advise me? I had the flu jab (UK) three weeks ago and for the past week I have developed a strange weakness and tingling in both legs. I'm also feeling progressively dizzy and slightly blurred vision and achey arms. I haven't actually fallen over yet but feel as if I shall if I walk very far. I haven't left the house for days. Been to my Doctor who did basic neurological tests, also bloods and ECG. All were showing normal. My Doctor says it's probably a virus, like flu. But I have no other symptoms - no fever, cold symptoms, etc. I'm scared it's something really bad and cannot sleep with worry. Please help, any advise greatly appreciated.