Hi MCC! Welcome!

I'm sorry to hear all that you are experiencing. As Sally mentioned, you do need to get them checked out. As for testing for MS, I didn't have lumbar puncture in my dx process. Between the MRI (with lesions in the locations that MS "likes") and clinical symptoms I was dx. Talk to your neurologist about the dx process as well as your sensitivity to pain. Should he decide to do the lumbar puncture there may be things he can do or give you to help ease any pain.

Let us know how in goes. In the meantime time, saying prayers for you.