Keri!
Quit psyching yourself out! Your doctor should have told you that you could or could not take your regular meds tomorrow. Since you have an appointment at the infusion center with a doctor before your infusion which may or may not be scheduled, please ask that doctor whether or not you should take your meds.
This is the TOUCH procedure as described on the Tysabri website:
http://www.tysabri.com/tysbProject/t...on-therapy.xml
Do what you would normally do every day! Eat, drink lots of fluids, RELAX, do some of that calming therapy! After you are done, you may be tired, just from your nerves, if nothing else.
When you are up to it, come and let us know how it went. We'll be looking for you!