<s>[INST] I went to my local accident and emergency yesterday regarding saddle parasthesia. They said I don t have it but I have almost all the symptoms. They won t give me a scan but I feel like I should have one. I also have lateral sciatica . I do have numbness and an occasional burning sensation at my very lower back but I m not incontinent and I could feel when I had an examination of my rectum . Please help as I m taking codeine and I m still in pain. [/INST] Hello.  Thanks for writing to us. The symptoms you are having are likely to be due to nerve compression at the level of sacral spine. A nerve conduction velocity and MRI of the lumbosacral spine will help in proper diagnosis. For symptomatic relief you can take methylcobalamin and vitamin B complex supplements regularly after consulting your physician. I hope this information has been both informative and helpful for you.   </s>