Got lp done a month a go, have pain in tail bone, burning senstation in my foot, and pressure in my lower back.

Needs eval: If these are new symptoms (especially the sensations that I presume travel down to your foot) than it is important that you advise your physician. Take care.

Best to be seen: It depends on the rationale for the LP and evaluation. It is best to be evaluated promptly to ensure whatever the causes of the issue are diagnosed and treated.