WOW...that's a lot of different types of medication .

Hopfully an effective medication program will be established for you at the MS clinic. In the meantime you might want to check with your PCP and/or a pharmacist on whether or not it is OK to be taking all of those different types of meds at the same time.
I know that you said that you don't take them all every day, but many of these remain in the body/liver for some time after being taken (check on the half-life of them), so that or even their metabolites could be causing some toxic stresses. The toxic stresses in turn most definitely can cause sensory hallucinations...visual, auditory, smells etc.

My MS neuro advised against combining some of the OTC NSAID, although that recommendation could have been made specifically for me rather than as a generalization. I really hope that you will at least check with a pharmacist to find out what is best for you.

Worried about you and hope that you get all of this under control soon .
Please continue to keep us updated.

With love, Erika