I have had all that you describe. Have also had tingling and numbness in hands, feet, and face.
For me the anal tingling was more of a buzz or shock type sensation. I have not seen anyone else describe the anal symptom. Makes me feel a bit better that I am not alone, sorry. Since starting antibiotics most of it has gone away. Only rarely do I have a tinge of it. So, I am assuming it was/is related to Lyme & Co.
If you have Lyme, etc, the symptoms are likely due to that rather than a disc issue.
Quest Elisa Lyme positive 2/2017
Igenex Lyme WB igm positive 3/2017 and July '17
Quest Ehrlichia positive 3/2017 neg. July '17
Igenex Bartonella positive 4/2017 neg. July '17
CD57 30 in 4/2017 12 in July '17