Ewizabeth,

Since this all started out with a migraine, which can be caused by various triggers (including allergies, hormones, etc.) . . . it may also be that the vertigo has been caused by the migraine.

Apparently a person does not have to have the migraine "pain" at the same time for the vertigo to be directly caused by the migraine:

http://www.merck.com/mmhe/sec06/ch080/ch080c.html

According to this consent form, used in Queensland, shooting pains from a lumbar puncture are relatively common from this procedure:

"Leg pain. Shooting pain down the legs at the time of the procedure is common, affecting about 10% of patients. It usually settles when the needle is removed. Rarely, ongoing pain occurs for a few days. Very rarely, permanent pain can occur."

http://www.health.qld.gov.au/informe...medical_01.pdf

These symptoms may very well just be something transient, so I wouldn't get too worried just yet.

Cherie