Hello Kay,
It's very common for people with MS to experience what is referred to as a "pseudoexacerbation" when we are sick or running a fever. It is the same reason that heat brings out our symptoms. Take some ibuprofen, drink plenty of fluids, and get some good rest. Your symptoms may not abate until you are fever free, and you have shaken whatever it is you have gotten.

I think it best to run it by your PCP so they are aware what is going on. They may want to run some labs (urinalysis and blood work) on you to make sure it is not a bacterial infection that can easily be treated with antibitics.

I hope you feel better soon. Get your rest, and keep us posted.

All the best,
Chris