Is it possible to have lyme go undignosed for a long time& evolve into ms ? i've tested positive for both.

Lyme: CNS lyme disease can appears similar to that of ms...Both on imaging and in spinal fluid. I recommend lumbar puncture to send for both ms panel and lyme titers. Some but not all physicians believe in chronicc lyme disease, but this is a different problem than CNS lyme affecting the brain/spinal cord.

Yes: Chronic lyme disease infecting the central nervous system can present with symptoms and MRI results that look just like ms. I know some authorities who feel about half of those diagnosed with ms actually have lyme. If you have tested positive for lyme i would try aggressive treatment of it; we have far better treatments for lyme than ms and ms treatments can aggravate lyme. See my comment:.

Be careful here: Although you could have both, chances are you have only one, but this is a tricky area to sort out, and would strongly recommend you get evaluation from a team of infectious disease and neurology. Chronic Lyme disease is a controversial area, but Lyme can masquerade as MS. All the best.