Sorry to hear that Nancy. From someone (me) that takes 120mg baclofen/day and still gets spasms, buy a table-top hand cycle and start cranking every day. Increase amount of oxygen going thru your lungs/blood and let me know if it helps. Swimming every other day here and it helps my legs alot for a few hrs after. Head feels better too.
I don't know if i'm allowed to post a link to a online retailer but thats where I bought mine and love it. It's made for your legs while using computer.

Honestly I also think your MS is progressing. Just as I typed that, my legs started tap dancing (spasms) and I got out of pool 2 hrs ago! grrr..