Hi,
I am so sorry you are having to deal with this stress on top of classes, feeling bad, etc.
I didn't have any problems with the spinal tap.  For me personally, they were ruling out Meningitis at the time.  My grand daughter had one at 6 weeks of age in the dr's office.
I know it sounds scary but I didn't think it was bad at all.  I do have 2 curvatures.  
You really do need to have someone with you if you decide to do it.  I would push the dr. to tell me exactly what he is looking for and the pros and cons so you can make an informed decision.
I wish I were close enough to go with you.
Hugs.
Possi
 
![[Linked Image]](https://www.kickas.org/images/flowers/Smilingsun.gif) 
   Possi
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RUN WHEN YOU CAN,
WALK IF YOU HAVE TO,
CRAWL IF YOU MUST,
JUST NEVER EVER GIVE UP!
"A FRIEND HEARS THE SONG IN YOUR HEART AND SINGS IT TO YOU WHEN YOU CAN'T REMEMBER THE WORDS."
"A FRIEND LOOKS THROUGH YOUR BROKEN FENCE TO ADMIRE YOUR FLOWERS."